Migrate ArrayLength (Keyed|Named)LoadIC to CodeStub

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 7e2ebe4d52730bb7527284523cc310d54f22bd8a..f906a3acf63a45254b9e21be9659c74617e1131b 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -47,6 +47,7 @@ namespace internal {
   V(Compare)                             \
   V(CompareIC)                           \
   V(MathPow)                             \
+  V(ArrayLength)                         \
   V(StringLength)                        \
   V(RecordWrite)                         \
   V(StoreBufferOverflow)                 \
@@ -557,11 +558,25 @@ class ICStub: public PlatformCodeStub {
   }
   Code::Kind kind() { return kind_; }
 
+  virtual int MinorKey() {
+    return KindBits::encode(kind_);
+  }
+
  private:
   Code::Kind kind_;
 };
 
 
+class ArrayLengthStub: public ICStub {
+ public:
+  explicit ArrayLengthStub(Code::Kind kind) : ICStub(kind) { }
+  virtual void Generate(MacroAssembler* masm);
+
+ private:
+  virtual CodeStub::Major MajorKey() { return ArrayLength; }
+};
+
+
 class StringLengthStub: public ICStub {
  public:
   StringLengthStub(Code::Kind kind, bool support_wrapper)