[binutils-gdb] gdb: Remove a cleanup from find_overload_match

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT 06d3e5b0046d69e3da3450d2eb07c29f0c1a189a ***

Author: Andrew Burgess <andrew.burgess@embecosm.com>
Branch: master
Commit: 06d3e5b0046d69e3da3450d2eb07c29f0c1a189a

gdb: Remove a cleanup from find_overload_match

This patch changes cp-support.c:cp_func_name to return a
'gdb::unique_xmalloc_ptr<char>' instead of a 'char *'.  This allows a
cleanup to be removed from valops.c:find_overload_match.

gdb/ChangeLog:

	* compile/compile-cplus-types.c
	(compile_cplus_instance::decl_name): Handle changes to
	cp_func_name.
	* cp-support.c (cp_func_name): Update header comment, update
	return type.
	* cp-support.h (cp_func_name): Update return type in declaration.
	* valops.c (find_overload_match): Move temp_func local to top
	level of function and change its type.  Use temp_func to hold and
	delete temporary string obtained from cp_func_name.