[interpreter] Add basic framework for bytecode handler code generation.

src/compiler/arm/linkage-arm.cc

Index: src/compiler/arm/linkage-arm.cc
diff --git a/src/compiler/arm/linkage-arm.cc b/src/compiler/arm/linkage-arm.cc
index 93cc773e73d319f19ad607a48ae65a3a606e5d8b..e3cd98290ff6104ffaf4f8c39b58ee462b023538 100644
--- a/src/compiler/arm/linkage-arm.cc
+++ b/src/compiler/arm/linkage-arm.cc
@@ -17,6 +17,8 @@ struct ArmLinkageHelperTraits {
   static Register ReturnValue2Reg() { return r1; }
   static Register JSCallFunctionReg() { return r1; }
   static Register ContextReg() { return cp; }
+  static Register InterpreterBytecodePointerReg() { return r6; }
+  static Register InterpreterDispatchTableReg() { return r8; }
   static Register RuntimeCallFunctionReg() { return r1; }
   static Register RuntimeCallArgCountReg() { return r0; }
   static RegList CCalleeSaveRegisters() {
@@ -70,9 +72,8 @@ CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
 }
 
 
-CallDescriptor* Linkage::GetInterpreterDispatchDescriptor(
-    Zone* zone, const MachineSignature* sig) {
-  return LH::GetInterpreterDispatchDescriptor(zone, sig);
+CallDescriptor* Linkage::GetInterpreterDispatchDescriptor(Zone* zone) {
+  return LH::GetInterpreterDispatchDescriptor(zone);
 }
 
 }  // namespace compiler