7144405: JumbleGC002 assert(m->offset() == pc_offset) failed: oopmap not found

Summary: oop map needs pc stored in frame anchor in StubGenerator::generate_throw_exception()
Reviewed-by: twisti, never, kvn

src/cpu/x86/vm/stubGenerator_x86_64.cpp

@@ -2997,7 +2997,7 @@ class StubGenerator: public StubCodeGenerator {
     // Generate oop map
     OopMap* map = new OopMap(framesize, 0);
 
-    oop_maps->add_gc_map(__ pc() - start, map);
+    oop_maps->add_gc_map(the_pc - start, map);
 
     __ reset_last_Java_frame(true, true);