WIP: Implement ES6 Spread-calls

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index 50216a766c074ec10c30872e6cf9f842288101ac..bf2286b9496871496d7831a11ecfd2967b23b3c8 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -2225,6 +2225,20 @@ void AstGraphBuilder::VisitCompareOperation(CompareOperation* expr) {
 }
 
 
+void AstGraphBuilder::VisitSpreadOperation(SpreadOperation* expr) {
+  LoopBuilder for_loop(this);
+  VisitForEffect(expr->assign_iterator());
+  for_loop.BeginLoop(NULL, false);
+  VisitForEffect(expr->next_result());
+  VisitForTest(expr->result_done());
+  Node* condition = environment()->Pop();
+  for_loop.BreakWhen(condition);
+  VisitForValue(expr->result_value());
+  for_loop.EndBody();
+  for_loop.EndLoop();
+}
+
+
 void AstGraphBuilder::VisitThisFunction(ThisFunction* expr) {
   Node* value = GetFunctionClosure();
   ast_context()->ProduceValue(value);