Oilpan: Disable snapshot GCs in HeapTest.ThreadedWeakness

Source/platform/heap/HeapTest.cpp

Index: Source/platform/heap/HeapTest.cpp
diff --git a/Source/platform/heap/HeapTest.cpp b/Source/platform/heap/HeapTest.cpp
index f1ae466c8cfde41d0daef4cac9c3ff444fe3a65b..2e3d01499e2a812f3c027fec85a2568b06ac86f3 100644
--- a/Source/platform/heap/HeapTest.cpp
+++ b/Source/platform/heap/HeapTest.cpp
@@ -523,7 +523,9 @@ protected:
                 }
 
                 // Taking snapshot shouldn't have any bad side effect.
-                Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::TakeSnapshot, Heap::ForcedGC);
+                // TODO(haraken): This snapshot GC causes crashes, so disable
+                // it at the moment. Fix the crash and enable it.
+                // Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::TakeSnapshot, Heap::ForcedGC);
                 Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::GCWithSweep, Heap::ForcedGC);
                 EXPECT_EQ(wrapper->value(), 0x0bbac0de);
                 EXPECT_EQ((*globalPersistent)->value(), 0x0ed0cabb);
@@ -569,7 +571,9 @@ private:
                 }
 
                 // Taking snapshot shouldn't have any bad side effect.
-                Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::TakeSnapshot, Heap::ForcedGC);
+                // TODO(haraken): This snapshot GC causes crashes, so disable
+                // it at the moment. Fix the crash and enable it.
+                // Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::TakeSnapshot, Heap::ForcedGC);
                 Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::GCWithSweep, Heap::ForcedGC);
                 EXPECT_TRUE(weakMap->isEmpty());
                 EXPECT_TRUE(weakMap2.isEmpty());