[interpreter] Support for ES6 super keyword.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index cd06baee50c7a1f8c645a7a3b3eb33767f3ca334..3e69c84d18e9b9ca26bae1f67bd47185502fc87a 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -1166,14 +1166,15 @@ void Interpreter::DoCallJSRuntimeWide(InterpreterAssembler* assembler) {
 
 void Interpreter::DoCallConstruct(InterpreterAssembler* assembler) {
   Callable ic = CodeFactory::InterpreterPushArgsAndConstruct(isolate_);
+  Node* new_target = __ GetAccumulator();
   Node* constructor_reg = __ BytecodeOperandReg(0);
   Node* constructor = __ LoadRegister(constructor_reg);
   Node* first_arg_reg = __ BytecodeOperandReg(1);
   Node* first_arg = __ RegisterLocation(first_arg_reg);
   Node* args_count = __ BytecodeOperandCount(2);
   Node* context = __ GetContext();
-  Node* result = __ CallConstruct(constructor, context, constructor, first_arg,
-                                  args_count);
+  Node* result =
+      __ CallConstruct(constructor, context, new_target, first_arg, args_count);
   __ SetAccumulator(result);
   __ Dispatch();
 }
@@ -1183,6 +1184,7 @@ void Interpreter::DoCallConstruct(InterpreterAssembler* assembler) {
 //
 // Call operator new with |constructor| and the first argument in
 // register |first_arg| and |arg_count| arguments in subsequent
+// registers. The new.target is in the accumulator.
 //
 void Interpreter::DoNew(InterpreterAssembler* assembler) {
   DoCallConstruct(assembler);
@@ -1193,6 +1195,7 @@ void Interpreter::DoNew(InterpreterAssembler* assembler) {
 //
 // Call operator new with |constructor| and the first argument in
 // register |first_arg| and |arg_count| arguments in subsequent
+// registers. The new.target is in the accumulator.
 //
 void Interpreter::DoNewWide(InterpreterAssembler* assembler) {
   DoCallConstruct(assembler);