[es2015] Simplify contract between parser and stub for derived constructors.

src/builtins/mips64/builtins-mips64.cc

Index: src/builtins/mips64/builtins-mips64.cc
diff --git a/src/builtins/mips64/builtins-mips64.cc b/src/builtins/mips64/builtins-mips64.cc
index 07f3c71354814d8375f2267b27b1ed45a0337a6d..2af9aa4b7bfc3cf69d1d7734434167df195d86b7 100644
--- a/src/builtins/mips64/builtins-mips64.cc
+++ b/src/builtins/mips64/builtins-mips64.cc
@@ -576,8 +576,12 @@ void Generate_JSConstructStubHelper(MacroAssembler* masm, bool is_api_function,
   // Check that the result is not a Smi, indicating that the constructor result
   // from a derived class is neither undefined nor an Object.
   if (check_derived_construct) {
-    Label dont_throw;
-    __ JumpIfNotSmi(v0, &dont_throw);
+    Label do_throw, dont_throw;
+    __ JumpIfNotSmi(v0, &do_throw);
+    __ GetObjectType(v0, a1, a3);
+    STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE);
+    __ Branch(&dont_throw, greater_equal, a3, Operand(FIRST_JS_RECEIVER_TYPE));
+    __ bind(&do_throw);
     {
       FrameScope scope(masm, StackFrame::INTERNAL);
       __ CallRuntime(Runtime::kThrowDerivedConstructorReturnedNonObject);