Merge revisions 7030:7051 from bleeding_edge to isolates branch....

src/x64/builtins-x64.cc

Index: src/x64/builtins-x64.cc
===================================================================
--- src/x64/builtins-x64.cc	(revision 7051)
+++ src/x64/builtins-x64.cc	(working copy)
@@ -1249,7 +1249,7 @@
   __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, rdi);
 
   if (FLAG_debug_code) {
-    // Initial map for the builtin Array function shoud be a map.
+    // Initial map for the builtin Array functions should be maps.
     __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset));
     // Will both indicate a NULL and a Smi.
     ASSERT(kSmiTag == 0);
@@ -1282,11 +1282,8 @@
   Label generic_constructor;
 
   if (FLAG_debug_code) {
-    // The array construct code is only set for the builtin Array function which
-    // does always have a map.
-    __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, rbx);
-    __ cmpq(rdi, rbx);
-    __ Check(equal, "Unexpected Array function");
+    // The array construct code is only set for the builtin and internal
+    // Array functions which always have a map.
     // Initial map for the builtin Array function should be a map.
     __ movq(rbx, FieldOperand(rdi, JSFunction::kPrototypeOrInitialMapOffset));
     // Will both indicate a NULL and a Smi.