[crankshaft] Pass new.target to direct function calls.

src/crankshaft/ppc/lithium-codegen-ppc.cc

Index: src/crankshaft/ppc/lithium-codegen-ppc.cc
diff --git a/src/crankshaft/ppc/lithium-codegen-ppc.cc b/src/crankshaft/ppc/lithium-codegen-ppc.cc
index 8f8a0e50f5564c50c4aa311a29435e473cf02d11..847899eb052eaa1068c8df5dd71c764d39296b14 100644
--- a/src/crankshaft/ppc/lithium-codegen-ppc.cc
+++ b/src/crankshaft/ppc/lithium-codegen-ppc.cc
@@ -3589,7 +3589,8 @@ void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
     // Change context.
     __ LoadP(cp, FieldMemOperand(function_reg, JSFunction::kContextOffset));
 
-    // Always initialize r3 to the number of actual arguments.
+    // Always initialize new target and number of actual arguments.
+    __ LoadRoot(r6, Heap::kUndefinedValueRootIndex);
     __ mov(r3, Operand(arity));
 
     bool is_self_call = function.is_identical_to(info()->closure());
@@ -4003,11 +4004,13 @@ void LCodeGen::DoCallJSFunction(LCallJSFunction* instr) {
   DCHECK(ToRegister(instr->function()).is(r4));
   DCHECK(ToRegister(instr->result()).is(r3));
 
-  __ mov(r3, Operand(instr->arity()));
-
   // Change context.
   __ LoadP(cp, FieldMemOperand(r4, JSFunction::kContextOffset));
 
+  // Always initialize new target and number of actual arguments.
+  __ LoadRoot(r6, Heap::kUndefinedValueRootIndex);
+  __ mov(r3, Operand(instr->arity()));
+
   bool is_self_call = false;
   if (instr->hydrogen()->function()->IsConstant()) {
     HConstant* fun_const = HConstant::cast(instr->hydrogen()->function());