PR sanitizer/63866
	* asan.c (asan_global_struct): Create a TYPE_DECL for "__asan_global",
	put it into TYPE_NAME and TYPE_STUB_DECL.
	* ubsan.c (ubsan_type_descriptor_type): New variable.
	Function renamed to ...
	(ubsan_get_type_descriptor_type): ... this.  Cache
	return value in ubsan_type_descriptor_type variable.
	Create a TYPE_DECL for "__ubsan_type_descriptor", put it into
	TYPE_NAME and TYPE_STUB_DECL.
	(ubsan_get_source_location_type): Create a TYPE_DECL for
	"__ubsan_source_location", put it into TYPE_NAME and TYPE_STUB_DECL.
	(ubsan_type_descriptor, ubsan_create_data): Call
	ubsan_get_type_descriptor_type instead of ubsan_type_descriptor_type.
	Create a TYPE_DECL for name, put it into TYPE_NAME and TYPE_STUB_DECL.

	* c-c++-common/ubsan/pr63866.c: New test.

From-SVN: r217718