[Interpreter] Add function literal support.

src/interpreter/interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interpreter/interpreter.h"
 
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/compiler/interpreter-assembler.h"
 #include "src/factory.h"
@@ skipping 669 matching lines @@
     compiler::InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* index = __ BytecodeOperandIdx8(0);
   Node* constant = __ LoadConstantPoolEntry(index);
   Node* relative_jump = __ SmiUntag(constant);
   Node* false_value = __ BooleanConstant(false);
   __ JumpIfWordEqual(accumulator, false_value, relative_jump);
 }
 
 
+// CreateClosure <tenured>
+//
+// Creates a new closure for SharedFunctionInfo in the accumulator with the
+// PretenureFlag <tenured>.
+void Interpreter::DoCreateClosure(compiler::InterpreterAssembler* assembler) {
+  // TODO(rmcilroy): Possibly call FastNewClosureStub when possible instead of
+  // calling into the runtime.
+  Node* shared = __ GetAccumulator();
+  Node* tenured_raw = __ BytecodeOperandImm8(0);
+  Node* tenured = __ SmiTag(tenured_raw);
+  Node* result =
+      __ CallRuntime(Runtime::kInterpreterNewClosure, shared, tenured);
+  __ SetAccumulator(result);
+  __ Dispatch();
+}
+
+
 // Return
 //
 // Return the value in the accumulator.
 void Interpreter::DoReturn(compiler::InterpreterAssembler* assembler) {
   __ Return();
 }
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8