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

src/builtins/mips/builtins-mips.cc

Index: src/builtins/mips/builtins-mips.cc
diff --git a/src/builtins/mips/builtins-mips.cc b/src/builtins/mips/builtins-mips.cc
index 33465d04d8012b23bde9190b560c75a357a3d0bc..6a895566d33147e78772520ee4b6213648e236d5 100644
--- a/src/builtins/mips/builtins-mips.cc
+++ b/src/builtins/mips/builtins-mips.cc
@@ -579,8 +579,12 @@ 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);