Implement target cache for constructor calls.

src/arm/debug-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 237 matching lines @@
   //  -- r2     : name
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, r2.bit(), 0);
 }
 
 
 void Debug::GenerateConstructCallDebugBreak(MacroAssembler* masm) {
   // Calling convention for construct call (from builtins-arm.cc)
   //  -- r0     : number of arguments (not smi)
   //  -- r1     : constructor function
-  Generate_DebugBreakCallHelper(masm, r1.bit(), r0.bit());
+  //  -- r2     : cache cell for call target
+  Generate_DebugBreakCallHelper(masm, r1.bit() | r2.bit(), r0.bit());
 }
 
 
 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) {
   // In places other than IC call sites it is expected that r0 is TOS which
   // is an object - this is not generally the case so this should be used with
   // care.
   Generate_DebugBreakCallHelper(masm, r0.bit(), 0);
 }
 
 
 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) {
+  // Register state for CallFunctionStub (from code-stubs-arm.cc).
   // ----------- S t a t e -------------
   //  -- r1 : function
   // -----------------------------------
   Generate_DebugBreakCallHelper(masm, r1.bit(), 0);
 }
 
 
 void Debug::GenerateSlot(MacroAssembler* masm) {
   // Generate enough nop's to make space for a call instruction. Avoid emitting
   // the constant pool in the debug break slot code.
@@ skipping 29 matching lines @@
 
 #undef __
 
 
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM