Delete bp_catch_fork and bp_catch_vfork.
(struct breakpoint_ops): Add new methods "insert", "remove"
and "breakpoint_hit".
* breakpoint.c (create_fork_vfork_event_catchpoint)
(create_fork_event_catchpoint, create_vfork_event_catchpoint): Remove.
(insert_catchpoint): Remove handling of bp_catch_fork and
bp_catch_vfork catchpoints, and handle them as bp_catchpoint
catchpoints instead.
(insert_bp_location, update_breakpoints_after_exec)
(remove_breakpoint, bpstat_check_location, bpstat_what)
(allocate_bp_location): Likewise.
(print_it_typical, print_one_breakpoint_location, mention): Remove
handling of bp_catch_fork and bp_catch_vfork breakpoints.
(ep_is_catchpoint, user_settable_breakpoint)
(breakpoint_address_is_meaningful, adjust_breakpoint_address)
(breakpoint_re_set_one, disable_command, enable_command):
Remove use of bp_catch_fork and bp_catch_vfork. Add handling of
bp_catchpoint breakpoints.
(insert_catch_fork, remove_catch_fork, breakpoint_hit_catch_fork)
(print_it_catch_fork, print_one_catch_fork, print_mention_catch_fork):
New functions.
(catch_fork_breakpoint_ops): New static constant.
(insert_catch_vfork, remove_catch_vfork, breakpoint_hit_catch_vfork)
(print_it_catch_vfork, print_one_catch_vfork)
(print_mention_catch_vfork): New functions.
(catch_vfork_breakpoint_ops): New static constant.
(create_catchpoint, create_fork_vfork_event_catchpoint): New functions.
(catch_fork_command_1): Use create_fork_vfork_event_catchpoint
to create the fork and vfork catchpoints.
(gnu_v3_exception_catchpoint_ops): Set new breakpoint_ops fields.
* ada-lang.c (catch_exception_breakpoint_ops): Set new breakpoint_ops
fields.
(catch_exception_unhandled_breakpoint_ops): Likewise.
(catch_assert_breakpoint_ops): Likewise.
variant branch.
(empty_record): Use INIT_CPLUS_SPECIFIC, since this field is not
supposed to be null. Fixes debugger segfaults.
(is_unchecked_variant): New function.
(to_fixed_variant_branch_type): Modify to leave unchecked unions
untouched.
(ada_template_to_fixed_record_type_1): Fix comment.
the associated complete symbol is also in the list.
(ada_add_local_symbols, ada_add_non_local_symbols): New functions,
extracted out from ada_lookup_symbol_list.
(ada_lookup_symbol_list): Use them. Remove the search through
the minimal symbols.
result type instead of builtin_type_int.
(value_subscript_packed): Use pos_atr instead of value_pos_atr.
(ada_value_subscript): Update call to value_pos_atr.
(ada_value_ptr_subscript): Likewise.
(ada_evaluate_subexp): Likewise.
(cast_from_fixed_to_double): Rename to ...
(cast_from_fixed): ... this. Add TYPE parameter. Use it instead
of builtin_type_double.
(ada_value_cast): Use cast_from_fixed instead of casting result
of cast_from_fixed_to_double.
(ada_evaluate_subexp): Update calls to cast_from_fixed_to_double.
and unop_promote before calling value_binop et. al.
* ada-lang.c (ada_evaluate_subexp): Add calls to binop_promote
and unop_promote before calling value_binop et. al.
* valarith.c (value_binop): Do not call binop_promote or unop_promote.
(value_pos): Do not call unop_promote.
(value_neg, value_complement): Likewise.
bool_type_default and bool_type_symbol.
(lang_bool_type): Remove prototype.
(LA_BOOL_TYPE): Remove macro.
(language_bool_type): Add prototype.
* language.c (lang_bool_type): Remove.
(language_bool_type): New function.
* value.h (value_in): Change return value to int.
* value.c (value_in): Return int instead of struct value *.
* eval.c (evaluate_subexp_standard): Call language_bool_type instead
of using LA_BOOL_TYPE. Update call to value_in.
* ada-lang.c (ada_evaluate_subexp): Call language_bool_type instead
of using LA_BOOL_TYPE or builtin_type_int for boolean values.
* language.c (unknown_language_arch_info): Set bool_type_default member
of struct language_arch_info.
* ada-lang.c (ada_language_arch_info): Set bool_type_symbol and
bool_type_default members of struct language_arch_info.
* c-lang.c (c_language_arch_info): Set bool_type_default member
of struct language_arch_info.
(cplus_language_arch_info): Set bool_type_symbol and bool_type_default
members of struct language_arch_info.
* f-lang.c (f_language_arch_info): Set bool_type_symbol and
bool_type_default members of struct language_arch_info.
* jv-lang.c (java_language_arch_info): Set bool_type_symbol and
bool_type_default members of struct language_arch_info.
* m2-lang.c (m2_language_arch_info): Set bool_type_symbol and
bool_type_default members of struct language_arch_info.
* p-lang.c (p_language_arch_info): Set bool_type_symbol and
bool_type_default members of struct language_arch_info.
the _parent field is a pointer and/or has a parallel XVS type.
(ada_evaluate_subexp) [OP_VAR_VALUE]: When doing an
EVAL_AVOID_SIDE_EFFECTS evaluation of a tagged type, return
the type of the tag instead of doing forcing an EVAL_NORMAL
expression evaluation.
(is_dot_digits_suffix): Remove.
(ada_lookup_symbol_list): Remove digits suffix from minimal symbols
before looking up in symbol table, and do not use wild matches on them.
(wild_match): Reimplement for speed and to allow matching of operator
symbols.
(is_valid_name_for_wild_match): Return zero for names that do not
follow the GNAT encoding.
(is_name_suffix): Fix typo in comment.
(to_record_with_fixed_variant_part): Ditto.
API to return LONGEST values rather than struct values.
(ada_evaluate_subexp): Change to use new API of discrete_type_low_bound
and discrete_type_high_bound.
(to_fixed_range_type): Create a range type in cases where
argument is base type and its limits are representable as ints.
(ada_is_modular_type): Correct so that base type must be integral.
* ada-lex.l (TRUEKEYWORD,FALSEKEYWORD): Make 'true' and 'false'
keywords when they appear alone, since we are phasing out
direct representation of these identifiers in ebugging data.
* ada-exp.y: Define 'true' and 'false' as primaries.
(type_boolean): New function.
(type_int,type_long,type_long_long,type_floattype_double)
(type_long_double): Remove uses of current_gdbarch for consistency
with type_boolean.
(write_int): Change comment to indicate that it might write boolean
constant as well.
* ada-typeprint.c (ada_print_type): Print '(false, true)' for boolean
type, since will no longer be represented as enumerated type in
debugging data.
* ada-valprint.c (print_optional_low_bound): Handle boolean case
as well.
instead of matching the symbol domain explictly.
* dwarf2read.c (add_partial_symbol): Do not add new psym for
STRUCT_DOMAIN. Make sure you recognize c++ struct and java and ada
class as typedefs. See lookup_partial_symbol function.
(new_symbol): Similar to add_partial_symbol, do not create
symbol for the typedef. See lookup_block_symbol.
* symtab.c (symbol_matches_domain): New function, takes care
of dual meaning of STRUCT_DOMAIN symbol for c++, ada and java.
(lookup_partial_symbol): Use symbol_matches_domain to see if the
found psym domain matches the given domain.
(lookup_block_symbol): Likewise.
(struct string_vector, new_string_vector, string_vector_append):
Delete.
(char_ptr): New typedef.
(DEF_VEC_P (char_ptr)): New VEC type.
(symbol_completion_add): Update profile to take the new VEC type
instead of the old string_vector structure. Update code accordingly.
(ada_make_symbol_completion_list): Use the new VEC type instead of
the old string_vector structure, and update the code accordingly.
* Makefile.in (ada-lang.o): Add dependency on vec.h.
when the type is an anonymous pointer type.
(ada_check_typedef): Avoid a seg fault when the type is null.
* ada-typeprint.c (print_array_type): Add support for pointer
to packed arrays.
Handle properly the case when the index type is an enumerated type.
Do not return the subtype of the bounds type, just return the
bounds type directly - this is not needed and is more consistent
with what we do for arrays when no XA parallel type exists.
(template_to_static_fixed_type): Fields of dynamic types sometimes
also need to be unwrapped. Take this into account.
(ada_to_fixed_type_1): Renamed from ada_to_fixed_type.
(ada_to_fixed_type): New wrapper around ada_to_fixed_type_1.
* ada-typeprint.c (ada_print_type): Get the typename from
the original type, not the base type.
(to_fixed_array_type, ada_to_fixed_value_create, unwrap_value):
Update calls to ada_to_fixed_type.
(ada_template_to_fixed_record_type_1): Ditto, but without looking
for the tag.
(ada_to_fixed_type): Add check_tag parameter; do not look for
tag if null. When looking for a tag, use a fixed record type.
* ada-lang.h (ada_to_fixed_type): Add check_tag parameter.
* ada-valprint.c (printable_val_type, ada_value_print): Update
calls to ada_to_fixed_type.
when noside is EVAL_AVOID_SIDE_EFFECTS to be an lval_memory.
This is needed to make sure that any other treatment applied
to the resulting value does not fail for spurious reason,
such as trying to take the address of this value.
(ada_remove_po_subprogram_suffix): New function.
(ada_decode): Improve. Move the description of the algorithm
directly inside the code, instead of in the function global
description.
the code in ada_evaluate_subexp, case UNOP_CAST. The code handling
the obscure case has been removed as we think that it is actually
unnecessary.
(ada_evaluate_subexp): Add type case when evaluating an OP_DOUBLE
or an OP_LONG with a non-null expect_type. Replace extracted-out
code with call to new ada_value_cast function.
for char and unsigned char types of Ada compilation units.
* ada-lang.c (ada_is_character_type): Always return true if
the type code is TYPE_CODE_CHAR.
(ada_lookup_encoded_symbol): Declare.
(ada_parse_renaming): Declare.
(ada_renaming_type,ada_is_object_renaming)
(ada_simple_renamed_entity): Delete declarations.
* ada-lang.c (ada_parse_renaming): New function to concentrate
extraction of information from renaming symbols.
(parse_old_style_renaming): New function to concentrate
extraction of old-style (purely type-based) renaming information.
(renaming_is_visible): Rename to...
(old_renaming_is_invisible): Rename and change sense of
renaming_is_visible.
(remove_out_of_scope_renamings): Rename to...
(remove_irrelevant_renamings): Renames remove_out_of_scope_renamings
and augments with additional logic to handle cases where the same
object renaming is encoded both as a reference variable and an
encoded renaming.
(ada_renaming_type,ada_is_object_renaming)
(ada_simple_renamed_entity): Delete definitions.
(ada_lookup_encoded_symbol): New function factored out of
ada_lookup_symbol.
(ada_lookup_symbol): Reimplement to call ada_lookup_encoded_symbol.
(wild_match): Don't reject perfect match of prefix.
(ada_find_renaming_symbol): Factor old-style renaming logic into
find_old_style_renaming_symbol.
(find_old_style_renaming_symbol): New name for content of old
ada_find_renaming_symbol.
(ada_prefer_type): Reimplement not to use ada_renaming_type.
* ada-exp.y (write_object_renaming): Change interface. Reimplement
to use new arguments and ada_parse_renaming.
Correct blocks used to find array index.
(write_var_or_type): Reimplement to use ada_parse_renaming.
of FT_INTEGER fundamental type for array range index type.
(decode_base_type): Use builtin types of current_gdbarch
instead of fundamental types.
* dwarf2read.c (struct dwarf2_cu): Remove ftypes member.
(read_file_scope): Do not initialize ftypes member.
(dwarf_base_type, dwarf2_fundamental_types): Remove functions.
(read_array_type): Use builtin_type_int32 instead of FT_INTEGER
fundamental type for array range index type.
(read_tag_string_type): Likewise for string range index type.
Also, do not overwrite FT_CHAR type with new string type.
(read_base_type): If DW_AT_name is missing, create unnamed type
with given properties instead of looking for a fundamental type.
Create new types as TYPE_TARGET_TYPE for DW_ATE_address and
DW_ATE_complex_float types.
(read_subrange_type): Create new type to represent missing
DW_AT_type instead of looking for a fundamental type.
(die_type): Use builtin type to represent "void" instead of
looking for a fundamental type.
* stabsread.c (define_symbol): Use builtin types to represent
'r' and 'i' floating-point and integer constants.
* gdbtypes.c (lookup_fundamental_type): Remove.
* gdbtypes.h (lookup_fundamental_type): Remove prototype.
(FT_VOID, FT_BOOLEAN, FT_CHAR, FT_SIGNED_CHAR, FT_UNSIGNED_CHAR,
FT_SHORT, FT_SIGNED_SHORT, FT_UNSIGNED_SHORT, FT_INTEGER,
FT_SIGNED_INTEGER, FT_UNSIGNED_INTEGER, FT_LONG, FT_SIGNED_LONG,
FT_UNSIGNED_LONG, FT_LONG_LONG, FT_SIGNED_LONG_LONG,
FT_UNSIGNED_LONG_LONG, FT_FLOAT, FT_DBL_PREC_FLOAT, FT_EXT_PREC_FLOAT,
FT_COMPLEX, FT_DBL_PREC_COMPLEX, FT_EXT_PREC_COMPLEX, FT_STRING,
FT_FIXED_DECIMAL, FT_FLOAT_DECIMAL, FT_BYTE, FT_UNSIGNED_BYTE,
FT_TEMPLATE_ARG, FT_DECFLOAT, FT_DBL_PREC_DECFLOAT,
FT_EXT_PREC_DECFLOAT, FT_NUM_MEMBERS): Remove macros.
* objfiles.c (struct objfile): Remove fundamental_types member.
* symfile.c (reread_symbols): Do not clear fundamental_types.
* language.h (struct language_defn): Remove la_fund_type member.
(create_fundamental_type): Remove.
* language.c (unk_lang_create_fundamental_type): Remove.
(unknown_language_defn, auto_language_defn,
local_language_defn): Adapt initializer.
* ada-lang.c (ada_create_fundamental_type): Remove.
(ada_language_defn): Adapt initializer.
* c-lang.h (c_create_fundamental_type): Remove prototype.
* c-lang.c (c_create_fundamental_type): Remove.
(c_language_defn, cplus_language_defn, asm_language_defn,
minimal_language_defn): Adapt initializer.
* f-lang.c (f_create_fundamental_type): Remove.
(f_language_defn): Adapt initializer.
* jv-lang.c (java_create_fundamental_type): Remove.
(java_language_defn): Adapt initializer.
* m2-lang.c (m2_create_fundamental_type): Remove.
(m2_language_defn): Adapt initializer.
* objc-lang.c (objc_create_fundamental_type): Remove.
(objc_language_defn): Adapt initializer.
* p-lang.h (pascal_create_fundamental_type): Remove prototype.
* p-lang.c (pascal_create_fundamental_type): Remove.
(pascal_language_defn): Adapt initializer.
* scm-lang.c (scm_language_defn): Adapt initializer.
the Ada runtime:
* ada-lang.c: Update general comments on how Ada exception catchpoints
are implemented.
(raise_sym_name, raise_unhandled_sym_name, raise_assert_sym_name)
(__gnat_raise_nodefer_with_msg): Delete.
(ada_unhandled_exception_name_addr_ftype): New type.
(exception_support_info): New type.
(ada_unhandled_exception_name_addr): Add forward declaration.
(ada_unhandled_exception_name_addr_from_raise): Likewise.
(default_exception_support_info): New constant.
(exception_support_info_fallback): Likewise.
(exception_info): New global variable.
(ada_exception_support_info_sniffer): New function.
(ada_executable_changed_observer): Likewise.
(ada_unhandled_exception_name_addr_from_raise): Renamed from
ada_unhandled_exception_name_addr.
(ada_unhandled_exception_name_addr): Reimplement to match the
latest Ada runtime implementation.
(error_breakpoint_runtime_sym_not_found): Delete.
(ada_exception_sym_name): Get the exception sym name from
exception_info rather than hardcoding it.
(ada_exception_sal): Add call to ada_exception_support_info_sniffer.
Update error handling.
* Makefile.in (ada-lang.o): Add dependency on observer.h.
* ada-lang.c (remove_out_of_scope_renamings): Change third
parameter's
type to a pointer to const struct block.
(ada_lookup_symbol_list): Don't cast away constness when
calling
remove_out_of_scope_renamings.
2007-02-09 Gabriel Dos Reis <gdr@integrable-solutions.net>
* linux-nat.c (linux_nat_find_memory_regions): Don't check the
address of 'filename'; it is always non null.
(is_known_support_routine): Improve the check verifying that the file
associated to this frame exists.
* Makefile.in (ada-lang.o): Add dependency on source.h.
(ada_exception_catchpoint_p, ada_decode_exception_location)
(ada_decode_assert_location): Add declaration.
* ada-lang.c: Add include of annotate.h and valprint.h.
(exception_catchpoint_kind): New enum.
(function_name_from_pc, is_known_support_routine)
(ada_find_printable_frame, ada_unhandled_exception_name_addr)
(ada_exception_name_addr_1, ada_exception_name_addr)
(print_it_exception, print_one_exception, print_mention_exception)
(print_it_catch_exception, print_one_catch_exception)
(print_mention_catch_exception, catch_exception_breakpoint_ops)
(print_it_catch_exception_unhandled)
(print_one_catch_exception_unhandled)
(print_mention_catch_exception_unhandled, print_it_catch_assert)
(print_one_catch_assert, print_mention_catch_assert)
(ada_exception_catchpoint_p, error_breakpoint_runtime_sym_not_found)
(ada_get_next_arg, catch_ada_exception_command_split)
(ada_exception_sym_name, ada_exception_sym_name)
(ada_exception_breakption_ops, ada_exception_catchpoint_cond_string)
(ada_parse_catchpoint_condition, ada_exception_sal)
(ada_decode_exception_location)
(ada_decode_assert_location): New function.
(catch_exception_unhandled_breakpoint_ops): New global variable.
(catch_assert_breakpoint_ops): New global variable.
* breakpoint.c: Add include of ada-lang.h.
(print_one_breakpoint): Do not print the condition for Ada
exception catchpoints.
(create_ada_exception_breakpoint): New function.
(catch_ada_exception_command, catch_assert_command): New function.
(catch_command_1): Add support for the new "catch exception" and
"catch assert" commands.
(_initialize_breakpoint): Add help description for the new catch
commands.
* Makefile.in (ada-lang.o): Add dependency on annotate.h and
valprint.h.
(breakpoint.o): Add dependency on ada-lang.h.
* ada-lang.c (value_subscript_packed): Don't bother to set the
lvalue type of the returned value here;
ada_value_primitive_packed_val takes care of that.
translation problems.
* ada-lang.c (ada_value_struct_elt): Change interface and handling
of errors to avoid translation problem (and less than optimal error
messages).
(ada_value_tag, ada_tag_name_1, ada_tag_name_2, ada_evaluate_subexp):
Use new interface to ada_value_struct_elt.
* ada_lang.h (ada_value_struct_elt): Update declaration to new
interface.
* ChangeLog: remove reference to ada-tasks.c from entry of
2006-01-07.
from ada-lex.l to here, where it is logically more appropriate.
The original reason, however, was to prevent premature name
lookups for selector names in record aggregates.
(BLOCKNAME, TYPENAME, OBJECT_RENAMING): Remove; lexer now returns
NAME for all of these.
(VAR): New artificial token to clarify precedence rules.
(OTHERS): New lexeme.
(empty_stoken): New symbol.
(%union): Remove ssym, voidval.
(%type): Remove <voidval> type declarations.
(syntax definitions): Add aggregates.
Remove distinction between NAME, TYPENAME, BLOCKNAME, OBJECT_RENAMING.
Rename some non-terminals to be closer to reference manual usage.
Tighten up expression syntax to disallow certain non-Ada
constructions such as X and then Y or else Z.
(ada_parse): Remove initialization of left_block_context.
(write_var_from_name): Remove.
(write_var_or_type): New function, containing previous code from
defunct write_var_from_name and name_lookup.
(block_lookup): New function, moved from ada-lex.l
(select_possible_type_sym): New function, factored out of
name_lookup, which used to be in ada-lex.l.
(find_primitive_type): Ditto.
(chop_selector): Ditto.
(write_ambiguous_var): New function, factored out of defunct
write_var_from_name.
(write_selectors): New function.
(write_name_assoc): New function.
(write_exp_op_with_string): New function.
* ada-lex.l (processId): Change interface to return stoken.
(tempbuf, resize_tempbuf, tempbuf_size, tempbuf_len): Remove.
(block_lookup, name_lookup): Remove. Functionality moved to
ada-exp.y.
(state IN_STRING): Remove.
(rules): Handle string escapes in processString.
Add 'others' token.
Return all NAMEs, BLOCKNAMEs, OBJECT_RENAMINGs, TYPENAMEs in
yylval.sval (as simple strings).
All name look-ups now handled in ada-exp.y.
Introduce "::" (COLONCOLON) token and return as separate token.
(processId): Change return convention. Comment.
Leave leading "'" in place.
(processString): New function.
(find_dot_all): Add note to comment.
Fix problem that allowed match only at the end.
* ada-lang.c: Introduce aggregates.
(find_struct_field): Add new parameter to count fields skipped, and
allow other output parameters to be NULL.
(value_tag_from_contents_and_address, ada_value_struct_elt): Use
new find_struct_field.
(ada_index_struct_field, assign_aggregate, ada_is_array_type)
(num_visible_fields, ada_index_struct_field_1, ada_index_struct_field)
(num_component_specs, assign_component, assign_aggregate):
(aggregate_assign_from_choices,aggregate_assign_positional)
(aggregate_assign_others,add_component_interval):
New functions.
(ada_evaluate_subexp): Declare.
Add aggregate-related operators.
(ada_forward_operator_length): Declare.
(resolve_subexp): Add cases for new aggregate operators and OP_NAME.
Consolidate Ada operators, using ada_forward_operator_length.
(ada_search_struct_field): Search in forward order.
(ADA_OPERATORS): Add new aggregate operators.
(ada_operator_length, ada_op_name, ada_forward_operator_length)
(ada_dump_subexp_body, ada_print_subexp): Handle new aggregate
operators and OP_NAME.
(ada_type_of_array): Use longest_to_int.
(value_assign_to_component): New function.
(ada_forward_operator_length, ada_op_name, ada_dump_subexp_body):
Add OP_NAME case.
(ada_forward_operator_length, ada_dump_subexp_body):
Add OP_STRING case.
* ada-lang.h (enum ada_operator): Add OP_AGGREGATE, OP_OTHERS,
OP_CHOICES, OP_DISCRETE_RANGE, OP_POSITIONAL.
definition from unsubmitted code.
(is_lower_alphanum): New function.
(ada_decode): Add support for decoding protected object subprograms
and entries, and of entities declared inside protected object
subprograms.
Also add missing handling for__{DIGITS}+ suffixes.
Allow '$<digits>' as valid overloading suffix.
(is_name_suffix): Add handling for protected type entriy suffixes.
Also add support for protected type subprogram suffixes, but keep
it commented out for now, as there is an ambiguity between these
entities and other internally generated entities.
Allow '$<digits>' as valid overloading suffix.
(is_valid_name_for_wild_match): New function.
(wild_match): Add an exra level of verification of the entity name
before declaring it a match for the given pattern.
(ada_type_of_array, ada_evaluate_subexp): Use more proper
longest_to_int rather than cast.
(ada_evaluate_subexp): Use "invalid" rather than "illegal" in comment.
(ada_coerce_to_simple_array): Call check_size to make sure
that the object size is reasonable.
(ada_value_primitive_packed_val): Use correct location in target
buffer for extracting packed record fields that are themselves records.
(add_defn_to_vec): Do not try to replace a stub type by its full
type. Avoids a potential infinite loop.
(ada_lookup_symbol): Move return incorrectly placed return statement,
causing a loop that should be scanning all object files to only
scan the first one.
(ada_tag_name_2): New function.
(ada_tag_name_1): If no 'tsd' field found in the dispatching table,
use alternative representation.
(ada_find_renaming_symbol): Strip the function name suffix when
computing the XR type name.
(ada_to_fixed_type): Try determining the tag only if we have the
object's address.
(to_fixed_array_type): Add comments.
(ada_check_typedef): Replace expression checking whether the given
type is a stub or not by a "call" to TYPE_STUB. Clearer and more
consistent.
* ada-lang.h (ADA_KNOWN_AUXILIARY_FUNCTION_NAME_PATTERNS): Allow
'$' in addition to '.' for runtime auxiliary function name suffixes.
See changes to ada_decode above.
(struct task_control_block): Add field called_task. (This change is
to keep synchronized with our local sources; it does not affect the
public version yet.)
* ada-typeprint.c (ada_print_type): Use int_string for printing
modulus of modular type.
(print_range): Trivial editorial comment fix.
* ada-valprint.c (ada_emit_char): Use normal Ada syntax for
double quote in string.
