[Interpreter] Fill out function prologue support.

src/interpreter/bytecodes.h

Index: src/interpreter/bytecodes.h
diff --git a/src/interpreter/bytecodes.h b/src/interpreter/bytecodes.h
index 6888ef4d6e7ce7c872f606e8c3b234bea0e41e09..51a904047277d95334f56cc382ea180734dfec3d 100644
--- a/src/interpreter/bytecodes.h
+++ b/src/interpreter/bytecodes.h
@@ -121,6 +121,10 @@ namespace interpreter {
   /* Closure allocation */                                                     \
   V(CreateClosure, OperandType::kImm8)                                         \
                                                                                \
+  /* Arguments allocation */                                                   \
+  V(CreateArgumentsSloppy, OperandType::kNone)                                 \

[Michael Starzinger, 2015/10/21 18:42:17]

suggestion: I know we are inconsistent with the naming, in ES5 the
differentiation between those two "arguments objects" was purely done on
language mode and these names made sense. But the ES6 spec refers to them as
"mapped arguments object"[1] and "unmapped arguments object"[2] and they are
chosen not only depending on language mode. In TurboFan e.g. we started using
the new naming scheme (see CreateArgumentsParameters::Type) recently. So I would
vote for calling these bytecodes "CreateArgumentsMapped" and
"CreateArgumentsUnmapped". Just a suggestion, no strong opinion, ultimately it's
up to you. :)

[1]
http://www.ecma-international.org/ecma-262/6.0/#sec-createmappedargumentsobject
[2]
http://www.ecma-international.org/ecma-262/6.0/#sec-createunmappedargumentsob...

[rmcilroy, 2015/10/22 15:19:52]

Good call, went with CreateUnmappedArguments and CreateMappedArguments.

+  V(CreateArgumentsStrict, OperandType::kNone)                                 \
+                                                                               \
   /* Control Flow */                                                           \
   V(Jump, OperandType::kImm8)                                                  \
   V(JumpConstant, OperandType::kIdx8)                                          \