[Interpreter] Move BytecodeHasHandler() from Interpreter to Bytecodes.

src/interpreter/bytecodes.h

Index: src/interpreter/bytecodes.h
diff --git a/src/interpreter/bytecodes.h b/src/interpreter/bytecodes.h
index 8f10766183c2cdb2a6010598b2606ba32a21e64a..8a8a7f3a80c2fb0e0066e7dbc7d76fcb50358a8c 100644
--- a/src/interpreter/bytecodes.h
+++ b/src/interpreter/bytecodes.h
@@ -512,6 +512,10 @@ class Bytecodes {
   static std::ostream& Decode(std::ostream& os, const uint8_t* bytecode_start,
                               int number_of_parameters);
 
+  // Returns true if a handler is generated for a bytecode at a given

[oth, 2016/03/24 15:50:35]

Could we also say something like "All bytecodes have handlers at
OperandScale::kSingle, but only bytecodes with scalable operands have handlers
with larger OperandScale values."

[Stefano Sanfilippo, 2016/03/24 16:07:14]

Done.

+  // operand scale.
+  static bool BytecodeHasHandler(Bytecode bytecode, OperandScale operand_scale);
+
   // Return the next larger operand scale.
   static OperandScale NextOperandScale(OperandScale operand_scale);