[runtime] Optimize and unify rest parameters.

src/interpreter/bytecode-array-builder.h

Index: src/interpreter/bytecode-array-builder.h
diff --git a/src/interpreter/bytecode-array-builder.h b/src/interpreter/bytecode-array-builder.h
index df0ae93fefab2e41874bd907587f7d91f601ac67..5431412c1536235e5a57a60e78a52f61dbf0e21a 100644
--- a/src/interpreter/bytecode-array-builder.h
+++ b/src/interpreter/bytecode-array-builder.h
@@ -24,10 +24,6 @@ namespace interpreter {
 class BytecodeLabel;
 class Register;
 
-// TODO(rmcilroy): Unify this with CreateArgumentsParameters::Type in Turbofan
-// when rest parameters implementation has settled down.

[rmcilroy, 2016/02/08 09:13:18]

Thanks for removing this!

-enum class CreateArgumentsType { kMappedArguments, kUnmappedArguments };
-
 class BytecodeArrayBuilder final : public ZoneObject, private RegisterMover {
  public:
   BytecodeArrayBuilder(Isolate* isolate, Zone* zone, int parameter_count,
@@ -152,9 +148,6 @@ class BytecodeArrayBuilder final : public ZoneObject, private RegisterMover {
   // Create a new arguments object in the accumulator.
   BytecodeArrayBuilder& CreateArguments(CreateArgumentsType type);
 
-  // Create a new rest arguments object starting at |index| in the accumulator.
-  BytecodeArrayBuilder& CreateRestArguments(int index);
-
   // Literals creation.  Constant elements should be in the accumulator.
   BytecodeArrayBuilder& CreateRegExpLiteral(Handle<String> pattern,
                                             int literal_index, int flags);