[fullcodegen] Factor out EmitNewClosure from architectures.

src/full-codegen/arm64/full-codegen-arm64.cc

Index: src/full-codegen/arm64/full-codegen-arm64.cc
diff --git a/src/full-codegen/arm64/full-codegen-arm64.cc b/src/full-codegen/arm64/full-codegen-arm64.cc
index bc16a5277d9e555885db179261f5ecc4446ba6df..f0d5059999e2361d138618eb0ca7dfeb2ee7d1dd 100644
--- a/src/full-codegen/arm64/full-codegen-arm64.cc
+++ b/src/full-codegen/arm64/full-codegen-arm64.cc
@@ -1165,31 +1165,6 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
 }
 
 
-void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info,
-                                       bool pretenure) {
-  // Use the fast case closure allocation code that allocates in new space for
-  // nested functions that don't need literals cloning. If we're running with
-  // the --always-opt or the --prepare-always-opt flag, we need to use the
-  // runtime function so that the new function we are creating here gets a
-  // chance to have its code optimized and doesn't just get a copy of the
-  // existing unoptimized code.
-  if (!FLAG_always_opt &&
-      !FLAG_prepare_always_opt &&
-      !pretenure &&
-      scope()->is_function_scope() &&
-      info->num_literals() == 0) {
-    FastNewClosureStub stub(isolate(), info->language_mode(), info->kind());
-    __ Mov(x2, Operand(info));
-    __ CallStub(&stub);
-  } else {
-    __ Push(info);
-    __ CallRuntime(pretenure ? Runtime::kNewClosure_Tenured
-                             : Runtime::kNewClosure);
-  }
-  context()->Plug(x0);
-}
-
-
 void FullCodeGenerator::EmitSetHomeObject(Expression* initializer, int offset,
                                           FeedbackVectorSlot slot) {
   DCHECK(NeedsHomeObject(initializer));