re PR c++/40831 (g++ generated symbols for cloned function that be demangled.)

re PR c++/40831 (g++ generated symbols for cloned function that be demangled.)

include/ChangeLog:

	PR 40831
	* demangle.h (enum demangle_component_type): Add
	DEMANGLE_COMPONENT_CLONE.

libiberty/ChangeLog:

	PR 40831
	* cp-demangle.c (d_make_comp): Add new component type.
	(cplus_demangle_mangled_name): Check for clone suffixes.
	(d_parmlist): Don't error out if we see '.'.
	(d_clone_suffix): New function.
	(d_print_comp): Print info for clone suffixes.
	* testsuite/demangle-expected: Add new testcases.

From-SVN: r179132