symtab if one is not currently selected.
* utils.c (query): Call wrap_here before building the output
query string, to turn off wrapping and flush any buffered output.
Otherwise our query may end up in the wrap buffer and never be
seen by the user.
* eval.c (evaluate_subexp): Report error when attempting to
evaluate subscript for types without a target type, rather
than dumping core by using the NULL pointer.
* symfile.c (symbol_file_command): Forget current_source_symtab
and current_source_line when discarding symbol table.
* All GDB files that #include defs.h: Removed stdio.h.
(defs.h): #include stdio.h.
This has been tested by building GDBs for all targets hosted on Sun4.
None of the build problems were related to stdio.h inclusion. (n.b.
many configurations don't build for other reasons.)
