Revert of [runtime] Fix ES6 9.2.1 [[Call]] when encountering a classConstructor.

src/ia32/builtins-ia32.cc

Index: src/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index 832a9b3c34753b6053f4483eed07ac74b97a3c6a..70b2ad16d36e4498506648b6f1a8c17c4f5aa14e 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -1506,32 +1506,19 @@
   //  -- eax : the number of arguments (not including the receiver)
   //  -- edi : the function to call (checked to be a JSFunction)
   // -----------------------------------
-  // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList)
 
   Label convert, convert_global_proxy, convert_to_object, done_convert;
   __ AssertFunction(edi);
-  __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-
-  {
-    Label non_class_constructor;
-    // Check whether the current function is a classConstructor.
-    __ test_b(FieldOperand(edx, SharedFunctionInfo::kFunctionKindByteOffset),
-              SharedFunctionInfo::kClassConstructorBitsWithinByte);
-    __ j(zero, &non_class_constructor, Label::kNear);
-    // Step: 2, If we call a classConstructor Function throw a TypeError.
-    {
-      FrameScope frame(masm, StackFrame::INTERNAL);
-      __ CallRuntime(Runtime::kThrowConstructorNonCallableError, 0);
-    }
-    __ bind(&non_class_constructor);
-  }
-
+  // TODO(bmeurer): Throw a TypeError if function's [[FunctionKind]] internal
+  // slot is "classConstructor".
   // Enter the context of the function; ToObject has to run in the function
   // context, and we also need to take the global proxy from the function
   // context in case of conversion.
+  // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList)
   STATIC_ASSERT(SharedFunctionInfo::kNativeByteOffset ==
                 SharedFunctionInfo::kStrictModeByteOffset);
   __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
+  __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   // We need to convert the receiver for non-native sloppy mode functions.
   __ test_b(FieldOperand(edx, SharedFunctionInfo::kNativeByteOffset),
             (1 << SharedFunctionInfo::kNativeBitWithinByte) |