GC_END_STUBBORN_CHANGE  576 gc/include/gc.h #   define GC_END_STUBBORN_CHANGE(p) GC_debug_end_stubborn_change(p)
GC_END_STUBBORN_CHANGE  598 gc/include/gc.h #   define GC_END_STUBBORN_CHANGE(p) GC_end_stubborn_change(p)