Disable ParserSync test in GC stress mode for now.

test/cctest/test-parsing.cc

Index: test/cctest/test-parsing.cc
diff --git a/test/cctest/test-parsing.cc b/test/cctest/test-parsing.cc
index c7331bdb91b33bb5af60316343331b629d7547f5..3ea1fb1a66cc0081ddb49a78d4f98b1248ad9829 100644
--- a/test/cctest/test-parsing.cc
+++ b/test/cctest/test-parsing.cc
@@ -1238,6 +1238,10 @@ TEST(ParserSync) {
     NULL
   };
 
+  // TODO(mstarzinger): Disabled in GC stress mode for now, we should find the
+  // correct timeout for this and re-enable this test again.
+  if (i::FLAG_stress_compaction) return;
+
   v8::HandleScope handles(v8::Isolate::GetCurrent());
   v8::Persistent<v8::Context> context = v8::Context::New();
   v8::Context::Scope context_scope(context);