* src/disamb/validtypes/afcxx-validtypes.str,
	* src/disamb/validtypes/Makefile.am:
	New. Delete ambiguity branches with invalid types.

	* test/g++/Makefile.am, configure.ac, config/check-rules.mk,
	* src/parser/parse-cxx.str, src/disamb/Makefile.am: Update.