[Interpreter] Adds support for rest parameters to interpreter.

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 44b0d39d7f9740461630f7251fce1621ea8de3eb..509336bdf3772554842c79b56804e706e1c276bd 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -1017,19 +1017,25 @@ void BytecodeGraphBuilder::VisitCreateClosure() {
 void BytecodeGraphBuilder::VisitCreateClosureWide() { VisitCreateClosure(); }
 
 void BytecodeGraphBuilder::BuildCreateArguments(
-    CreateArgumentsParameters::Type type) {
+    CreateArgumentsParameters::Type type, int index) {

[rmcilroy, 2016/02/03 14:00:56]

/s/index/rest_index

[mythria, 2016/02/03 15:56:15]

Done.

   FrameStateBeforeAndAfter states(this);
-  const Operator* op = javascript()->CreateArguments(type, 0);
+  const Operator* op = javascript()->CreateArguments(type, index);
   Node* object = NewNode(op, GetFunctionClosure());
   environment()->BindAccumulator(object, &states);
 }
 
 void BytecodeGraphBuilder::VisitCreateMappedArguments() {
-  BuildCreateArguments(CreateArgumentsParameters::kMappedArguments);
+  BuildCreateArguments(CreateArgumentsParameters::kMappedArguments, 0);
 }
 
 void BytecodeGraphBuilder::VisitCreateUnmappedArguments() {
-  BuildCreateArguments(CreateArgumentsParameters::kUnmappedArguments);
+  BuildCreateArguments(CreateArgumentsParameters::kUnmappedArguments, 0);
+}
+
+void BytecodeGraphBuilder::VisitCreateRestArguments() {
+  int index =
+      Smi::cast(*bytecode_iterator().GetConstantForIndexOperand(0))->value();
+  BuildCreateArguments(CreateArgumentsParameters::kRestArray, index);
 }
 
 void BytecodeGraphBuilder::BuildCreateLiteral(const Operator* op) {