Use IC register definitions in platform files.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index d5118fb0e18ddf06290b1b9aaa12de1dd78ea967..a18528c5a98c423c25bcc6fd3c95d885711adffd 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -2090,7 +2090,8 @@ LInstruction* LChunkBuilder::DoLoadGlobalCell(HLoadGlobalCell* instr) {
 
 LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
-  LOperand* global_object = UseFixed(instr->global_object(), edx);
+  LOperand* global_object = UseFixed(instr->global_object(),
+                                     LoadIC::ReceiverRegister());
   LLoadGlobalGeneric* result =
       new(zone()) LLoadGlobalGeneric(context, global_object);
   return MarkAsCall(DefineFixed(result, eax), instr);
@@ -2145,7 +2146,7 @@ LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) {
 
 LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
-  LOperand* object = UseFixed(instr->object(), edx);
+  LOperand* object = UseFixed(instr->object(), LoadIC::ReceiverRegister());
   LLoadNamedGeneric* result = new(zone()) LLoadNamedGeneric(context, object);
   return MarkAsCall(DefineFixed(result, eax), instr);
 }
@@ -2203,8 +2204,8 @@ LInstruction* LChunkBuilder::DoLoadKeyed(HLoadKeyed* instr) {
 
 LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
-  LOperand* object = UseFixed(instr->object(), edx);
-  LOperand* key = UseFixed(instr->key(), ecx);
+  LOperand* object = UseFixed(instr->object(), KeyedLoadIC::ReceiverRegister());
+  LOperand* key = UseFixed(instr->key(), KeyedLoadIC::NameRegister());
 
   LLoadKeyedGeneric* result =
       new(zone()) LLoadKeyedGeneric(context, object, key);