[Interpreter] Add function literal support.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index 74cfd4782898db131ac44803c58464fae5e46d66..212da8e70efcf882836f631698b18506cd4a9a60 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -652,6 +652,23 @@ void Interpreter::DoJumpIfFalseConstant(
 }
 
 
+// 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

[Michael Starzinger, 2015/10/09 13:19:00]

About this TODO: Michael Stanton is currently working on extending the
FestNewClosureStub. If we are lucky, that stub can soon be used without
restrictions on the literals array. So just give this TODO some resting time, it
might soon be much easier to address. :)

[rmcilroy, 2015/10/12 17:00:15]

Good to know, thanks!

+  // 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.