[interpreter] Move temporary register allocator into own file.

src/interpreter/bytecodes.cc

Index: src/interpreter/bytecodes.cc
diff --git a/src/interpreter/bytecodes.cc b/src/interpreter/bytecodes.cc
index c17e95878adb6734577db6716db56b12376cc08b..4f7b4a6d0b07615145f0ec4eebae96543e8eebef 100644
--- a/src/interpreter/bytecodes.cc
+++ b/src/interpreter/bytecodes.cc
@@ -262,6 +262,16 @@ bool Bytecodes::IsJumpOrReturn(Bytecode bytecode) {
   return bytecode == Bytecode::kReturn || IsJump(bytecode);
 }
 
+bool Bytecodes::IsMaybeRegisterOperandType(OperandType operand_type) {
+  return (operand_type == OperandType::kMaybeReg8 ||
+          operand_type == OperandType::kMaybeReg16);
+}
+
+bool Bytecodes::IsRegisterCountOperandType(OperandType operand_type) {
+  return (operand_type == OperandType::kRegCount8 ||
+          operand_type == OperandType::kRegCount16);
+}
+
 // static
 bool Bytecodes::IsRegisterOperandType(OperandType operand_type) {
   switch (operand_type) {