Make concrete classes for individual call descriptors.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 74bb1327483111248f7381b6a1c35894ee6fd412..d05f72ba54524b182ece5356cac3223133fc6fa5 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2850,11 +2850,11 @@ template <class T>
 void LCodeGen::EmitVectorLoadICRegisters(T* instr) {
   DCHECK(FLAG_vector_ics);
   Register vector = ToRegister(instr->temp_vector());
-  DCHECK(vector.is(FullVectorLoadConvention::VectorRegister()));
+  DCHECK(vector.is(VectorLoadICDescriptor::VectorRegister()));
   __ Move(vector, instr->hydrogen()->feedback_vector());
   // No need to allocate this register.
-  DCHECK(VectorLoadConvention::SlotRegister().is(rax));
-  __ Move(VectorLoadConvention::SlotRegister(),
+  DCHECK(VectorLoadICDescriptor::SlotRegister().is(rax));
+  __ Move(VectorLoadICDescriptor::SlotRegister(),
           Smi::FromInt(instr->hydrogen()->slot()));
 }
 
@@ -2862,10 +2862,10 @@ void LCodeGen::EmitVectorLoadICRegisters(T* instr) {
 void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->global_object())
-             .is(LoadConvention::ReceiverRegister()));
+             .is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(rax));
 
-  __ Move(LoadConvention::NameRegister(), instr->name());
+  __ Move(LoadDescriptor::NameRegister(), instr->name());
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   }
@@ -3005,10 +3005,10 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
 
 void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
-  DCHECK(ToRegister(instr->object()).is(LoadConvention::ReceiverRegister()));
+  DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(rax));
 
-  __ Move(LoadConvention::NameRegister(), instr->name());
+  __ Move(LoadDescriptor::NameRegister(), instr->name());
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
   }
@@ -3289,8 +3289,8 @@ Operand LCodeGen::BuildFastArrayOperand(
 
 void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
-  DCHECK(ToRegister(instr->object()).is(LoadConvention::ReceiverRegister()));
-  DCHECK(ToRegister(instr->key()).is(LoadConvention::NameRegister()));
+  DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
+  DCHECK(ToRegister(instr->key()).is(LoadDescriptor::NameRegister()));
 
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr);
@@ -4189,10 +4189,10 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
 
 void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
-  DCHECK(ToRegister(instr->object()).is(StoreConvention::ReceiverRegister()));
-  DCHECK(ToRegister(instr->value()).is(StoreConvention::ValueRegister()));
+  DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
+  DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
-  __ Move(StoreConvention::NameRegister(), instr->hydrogen()->name());
+  __ Move(StoreDescriptor::NameRegister(), instr->hydrogen()->name());
   Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->strict_mode());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
@@ -4454,9 +4454,9 @@ void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) {
 
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
-  DCHECK(ToRegister(instr->object()).is(StoreConvention::ReceiverRegister()));
-  DCHECK(ToRegister(instr->key()).is(StoreConvention::NameRegister()));
-  DCHECK(ToRegister(instr->value()).is(StoreConvention::ValueRegister()));
+  DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
+  DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister()));
+  DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
   Handle<Code> ic = instr->strict_mode() == STRICT
       ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()