move HandleApiCall builtin to assembly

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 03075d92372fe7da40c6244ab42d0c2cd3e80b38..267721020034bfa1f9e6f4a66535a34a0a5889bf 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -24,6 +24,7 @@ namespace internal {
   V(ArrayConstructor)                       \
   V(BinaryOpICWithAllocationSite)           \
   V(CallApiFunction)                        \
+  V(JSApiFunction)                          \
   V(CallApiAccessor)                        \
   V(CallApiGetter)                          \
   V(CallConstruct)                          \
@@ -1148,6 +1149,27 @@ class CallApiFunctionStub : public PlatformCodeStub {
 };
 
 
+// Like CallApiFunctionStub above, but conforms to the JS call abi.
+class JSApiFunctionStub : public PlatformCodeStub {
+ public:
+  JSApiFunctionStub(Isolate* isolate, Handle<FunctionTemplateInfo> info);
+
+ private:
+  bool call_data_undefined() const {
+    return CallDataUndefinedBits::decode(minor_key_);
+  }
+  bool has_call_code() const { return HasCallCodeBits::decode(minor_key_); }
+  bool has_signature() const { return HasSignatureBits::decode(minor_key_); }
+
+  class CallDataUndefinedBits : public BitField<bool, 0, 1> {};
+  class HasCallCodeBits : public BitField<bool, 1, 1> {};
+  class HasSignatureBits : public BitField<bool, 2, 1> {};
+
+  DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
+  DEFINE_PLATFORM_CODE_STUB(JSApiFunction, PlatformCodeStub);
+};
+
+
 class CallApiAccessorStub : public PlatformCodeStub {
  public:
   CallApiAccessorStub(Isolate* isolate, bool is_store, bool call_data_undefined)