RSTRING_FSTR      239 ext/objspace/objspace_dump.c 	if (FL_TEST(obj, RSTRING_FSTR))
RSTRING_FSTR      935 include/ruby/ruby.h #define RSTRING_FSTR RSTRING_FSTR
RSTRING_FSTR      286 string.c       	RBASIC(str)->flags |= RSTRING_FSTR;
RSTRING_FSTR      302 string.c           if (FL_TEST(str, RSTRING_FSTR))
RSTRING_FSTR     1214 string.c           if (FL_TEST(str, RSTRING_FSTR)) {
RSTRING_FSTR     1303 string.c           if (!FL_TEST_RAW(str, RSTRING_FSTR) && FL_ABLE(obj))