re PR middle-end/19382 (ACATS cxb4005 cxb5002 simple To_COBOL/To_Fortran test fails at runtime on s390-linux)

	PR ada/19382
	* builtins.c (fold_builtin_memcmp): When constructing the pointer
	type used to access data in the inlined length == 1 case, use
	build_pointer_type_for_mode with CAN_ALIAS_ALL set to true.
	(fold_builtin_strcmp, fold_builtin_strncmp): Likewise.

From-SVN: r104948