Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* lib/compiler.c: Remove gcc_compiled, hp_cc_compiler,
hp_aCC_compiler.
* lib/compiler.cc: Likewise.
* lib/gdb.exp (get_compiler_info): Eval lines only if they are
'set' commands. Log diagnostics for other lines. Set
gcc_compiled, hp_cc_compiler, and hp_aCC_compiler.
* lib/compiler.cc, lib/compiler.c: Append either
__GNUC_PATCHLEVEL__, or "unknown" to the compiler_info.
* gdb.base/structs.exp (test_struct_calls): Check for gcc-3-3-*
instead of gcc-3-3.
* lib/compiler.c: Add hp_cc_compiler and hp_aCC_compiler.
* lib/compiler.cc: Likewise.
* lib/gdb.exp (get_compiler_info): Always call gdb_compile to
get the right preprocessor. Eval the output directly. Remove
special tests for hp_cc_compiler and hp_aCC_compiler. Remove
hp_f77_compiler and hp_f90_compiler completely.
(gdb_preprocess): Delete.
(get_compiler): Delete.
* lib/gdb.exp (compiler_info): New global.
(test_compiler_info): New function.
(get_compiler_info): Set compiler_info.
* lib/compiler.c, lib/compiler.cc: Add copyright. When GNUC, set
"compiler_info" to gcc-<major>-<minor>.
