Oilpan: add eager tracing stack depth checks.

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 7b5e314bc1948d5f6a339a40c91920b1f2324c56..bef5d11eeaa3d5b300463ca3269ef65647462634 100644
--- a/Source/platform/heap/HeapTest.cpp
+++ b/Source/platform/heap/HeapTest.cpp
@@ -5307,7 +5307,7 @@ TEST(HeapTest, TraceTypesEagerly)
     COMPILE_ASSERT(TraceEagerlyTrait<TraceTypeEagerly1>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<Member<TraceTypeEagerly1>>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<WeakMember<TraceTypeEagerly1>>::value, ShouldBeTrue);
-    COMPILE_ASSERT(!TraceEagerlyTrait<RawPtr<TraceTypeEagerly1>>::value, ShouldBeTrue);
+    COMPILE_ASSERT(ENABLE_EAGER_TRACING_BY_DEFAULT || !TraceEagerlyTrait<RawPtr<TraceTypeEagerly1>>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<HeapVector<Member<TraceTypeEagerly1>>>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<HeapVector<WeakMember<TraceTypeEagerly1>>>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<HeapHashSet<Member<TraceTypeEagerly1>>>::value, ShouldBeTrue);
@@ -5325,8 +5325,8 @@ TEST(HeapTest, TraceTypesEagerly)
     COMPILE_ASSERT(TraceEagerlyTrait<TraceTypeEagerly5>::value, ShouldBeTrue);
     COMPILE_ASSERT(TraceEagerlyTrait<Member<TraceTypeEagerly5>>::value, ShouldBeTrue);
 
-    COMPILE_ASSERT(!TraceEagerlyTrait<TraceTypeEagerly6>::value, ShouldBeTrue);
-    COMPILE_ASSERT(!TraceEagerlyTrait<TraceTypeEagerly7>::value, ShouldBeTrue);
+    COMPILE_ASSERT(ENABLE_EAGER_TRACING_BY_DEFAULT || !TraceEagerlyTrait<TraceTypeEagerly6>::value, ShouldBeTrue);
+    COMPILE_ASSERT(ENABLE_EAGER_TRACING_BY_DEFAULT || !TraceEagerlyTrait<TraceTypeEagerly7>::value, ShouldBeTrue);
 
     COMPILE_ASSERT(!TraceEagerlyTrait<TraceTypeNonEagerly1>::value, ShouldBeTrue);
 }