Remove JSFunctionResultCache.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 3df224995eff4807d2da1208b8c270363c011640..0d26b4776979f8d6f2e10d49668a5a7866cd7f1c 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -430,7 +430,6 @@ void Heap::IncrementDeferredCount(v8::Isolate::UseCounterFeature feature) {
 void Heap::GarbageCollectionPrologue() {
   {
     AllowHeapAllocation for_the_first_part_of_prologue;
-    ClearJSFunctionResultCaches();
     gc_count_++;
     unflattened_strings_length_ = 0;
 
@@ -1134,29 +1133,6 @@ void Heap::EnsureFromSpaceIsCommitted() {
 }
 
 
-void Heap::ClearJSFunctionResultCaches() {
-  if (isolate_->bootstrapper()->IsActive()) return;
-
-  Object* context = native_contexts_list();
-  while (!context->IsUndefined()) {
-    // Get the caches for this context. GC can happen when the context
-    // is not fully initialized, so the caches can be undefined.
-    Object* caches_or_undefined =
-        Context::cast(context)->get(Context::JSFUNCTION_RESULT_CACHES_INDEX);
-    if (!caches_or_undefined->IsUndefined()) {
-      FixedArray* caches = FixedArray::cast(caches_or_undefined);
-      // Clear the caches:
-      int length = caches->length();
-      for (int i = 0; i < length; i++) {
-        JSFunctionResultCache::cast(caches->get(i))->Clear();
-      }
-    }
-    // Get the next context:
-    context = Context::cast(context)->get(Context::NEXT_CONTEXT_LINK);
-  }
-}
-
-
 void Heap::ClearNormalizedMapCaches() {
   if (isolate_->bootstrapper()->IsActive() &&
       !incremental_marking()->IsMarking()) {