Add copy support in inliner.

test/cctest/compiler/test-changes-lowering.cc

Index: test/cctest/compiler/test-changes-lowering.cc
diff --git a/test/cctest/compiler/test-changes-lowering.cc b/test/cctest/compiler/test-changes-lowering.cc
index 071acf3eb9376c10521701f9d7333ef9e160179c..d4076e9ae6fcccf7cc5642c12c63b5a5df10fee0 100644
--- a/test/cctest/compiler/test-changes-lowering.cc
+++ b/test/cctest/compiler/test-changes-lowering.cc
@@ -31,10 +31,13 @@ class ChangesLoweringTester : public GraphBuilderTester<ReturnType> {
   explicit ChangesLoweringTester(MachineType p0 = kMachNone)
       : GraphBuilderTester<ReturnType>(p0),
         typer(this->zone()),
-        jsgraph(this->graph(), this->common(), &typer),
+        javascript(this->zone()),
+        jsgraph(this->graph(), this->common(), &javascript, &typer,
+                this->machine()),
         function(Handle<JSFunction>::null()) {}
 
   Typer typer;
+  JSOperatorBuilder javascript;
   JSGraph jsgraph;
   Handle<JSFunction> function;