Replace ICStub for array.length with hydrogen stub

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 7ebc1033db09f50a403d078f122cc508c2c2621b..d01a81522ef5d69099fbbea5d3bd577c7c0020e1 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -2379,34 +2379,6 @@ void MathPowStub::Generate(MacroAssembler* masm) {
 }
 
 
-void ArrayLengthStub::Generate(MacroAssembler* masm) {
-  Label miss;
-  Register receiver;
-  if (kind() == Code::KEYED_LOAD_IC) {
-    // ----------- S t a t e -------------
-    //  -- rax    : key
-    //  -- rdx    : receiver
-    //  -- rsp[0] : return address
-    // -----------------------------------
-    __ Cmp(rax, masm->isolate()->factory()->length_string());
-    __ j(not_equal, &miss);
-    receiver = rdx;
-  } else {
-    ASSERT(kind() == Code::LOAD_IC);
-    // ----------- S t a t e -------------
-    //  -- rax    : receiver
-    //  -- rcx    : name
-    //  -- rsp[0] : return address
-    // -----------------------------------
-    receiver = rax;
-  }
-
-  StubCompiler::GenerateLoadArrayLength(masm, receiver, r8, &miss);
-  __ bind(&miss);
-  StubCompiler::GenerateLoadMiss(masm, kind());
-}
-
-
 void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
   Label miss;
   Register receiver;