gdb/

gdb/
	Fall back linespec to minimal symbols.
	* linespec.c (decode_line_1): New variable ex, saved_argptr.  Protect
	decode_compound by TRY_CATCH, fall back on minsyms if it failed.
	(find_method, symbol_found): Change error to cplusplus_error.

gdb/testsuite/
	Fall back linespec to minimal symbols.
	* gdb.base/psymtab.exp (Don't search past end of psymtab.): Update the
	error message.
	* gdb.cp/cplusfuncs.exp (list foo::operator int*): Likewise.
	* gdb.cp/minsym-fallback-main.cc: New file.
	* gdb.cp/minsym-fallback.cc: New file.
	* gdb.cp/minsym-fallback.exp: New file.
	* gdb.cp/minsym-fallback.h: New file.