Revert "Customized support for feedback on calls to Array." and follow-up fixes.

src/objects.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "v8.h"
 
 #include "accessors.h"
 #include "allocation-site-scopes.h"
 #include "api.h"
 #include "arguments.h"
@@ skipping 11187 matching lines @@
                   info->host()->constant_pool());
       }
     }
   }
 }
 
 
 void SharedFunctionInfo::ClearTypeFeedbackInfo() {
   FixedArray* vector = feedback_vector();
   Heap* heap = GetHeap();
-  int length = vector->length();
-
-  for (int i = 0; i < length; i++) {
+  for (int i = 0; i < vector->length(); i++) {
     Object* obj = vector->get(i);
-    if (obj->IsHeapObject()) {
-      InstanceType instance_type =
-          HeapObject::cast(obj)->map()->instance_type();
-      switch (instance_type) {
-        case ALLOCATION_SITE_TYPE:
-          // AllocationSites are not cleared because they do not store
-          // information that leaks.
-          break;
-        case JS_FUNCTION_TYPE:
-          // No need to clear the native context array function.
-          if (obj == JSFunction::cast(obj)->context()->native_context()->
-              get(Context::ARRAY_FUNCTION_INDEX)) {
-            break;
-          }
-          // Fall through...
-
-        default:
-          vector->set(i, TypeFeedbackInfo::RawUninitializedSentinel(heap),
-                      SKIP_WRITE_BARRIER);
-      }
+    if (!obj->IsAllocationSite()) {
+      vector->set(
+          i,
+          TypeFeedbackInfo::RawUninitializedSentinel(heap),
+          SKIP_WRITE_BARRIER);
     }
   }
 }
 
 
 BailoutId Code::TranslatePcOffsetToAstId(uint32_t pc_offset) {
   DisallowHeapAllocation no_gc;
   ASSERT(kind() == FUNCTION);
   BackEdgeTable back_edges(this, &no_gc);
   for (uint32_t i = 0; i < back_edges.length(); i++) {
@@ skipping 6027 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal