Use IC register definitions in platform files.

src/arm/debug-arm.cc

Index: src/arm/debug-arm.cc
diff --git a/src/arm/debug-arm.cc b/src/arm/debug-arm.cc
index d5b55b7d7bce68fe1c687fcc249ceea845e74f42..97883199f23b309cdee288ff53c10d19e7451d43 100644
--- a/src/arm/debug-arm.cc
+++ b/src/arm/debug-arm.cc
@@ -176,15 +176,9 @@ void DebugCodegen::GenerateCallICStubDebugBreak(MacroAssembler* masm) {
 
 void DebugCodegen::GenerateLoadICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC load (from ic-arm.cc).
-  // ----------- S t a t e -------------
-  //  -- r2    : name
-  //  -- lr    : return address
-  //  -- r0    : receiver
-  //  -- [sp]  : receiver
-  // -----------------------------------
-  // Registers r0 and r2 contain objects that need to be pushed on the
-  // expression stack of the fake JS frame.
-  Generate_DebugBreakCallHelper(masm, r0.bit() | r2.bit(), 0);
+  Register receiver = LoadIC::ReceiverRegister();
+  Register name = LoadIC::NameRegister();
+  Generate_DebugBreakCallHelper(masm, receiver.bit() | name.bit(), 0);
 }
 
 
@@ -203,11 +197,10 @@ void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
 
 
 void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
-  // ---------- S t a t e --------------
-  //  -- lr     : return address
-  //  -- r0     : key
-  //  -- r1     : receiver
-  Generate_DebugBreakCallHelper(masm, r0.bit() | r1.bit(), 0);
+  // Calling convention for keyed IC load (from ic-arm.cc).
+  Register receiver = KeyedLoadIC::ReceiverRegister();
+  Register name = KeyedLoadIC::NameRegister();
+  Generate_DebugBreakCallHelper(masm, receiver.bit() | name.bit(), 0);
 }