GPR_FLAG_STRESS  6722 gc.c           	(flags & GPR_FLAG_STRESS) ? sym_stress :
GPR_FLAG_STRESS  7665 gc.c           	garbage_collect_with_gvl(objspace, gc_stress_full_mark_after_malloc_p(), TRUE, TRUE, GPR_FLAG_STRESS | GPR_FLAG_MALLOC);
GPR_FLAG_STRESS  8539 gc.c           	record->flags = reason | (ruby_gc_stressful ? GPR_FLAG_STRESS : 0);
GPR_FLAG_STRESS  8909 gc.c           				   (record->flags & GPR_FLAG_STRESS) ? '!' : ' ',