Convert Linkage to use MachineSignature.

src/compiler/raw-machine-assembler.cc

Index: src/compiler/raw-machine-assembler.cc
diff --git a/src/compiler/raw-machine-assembler.cc b/src/compiler/raw-machine-assembler.cc
index 3b4a9aca3ccfd2acf8ea89bfc914f65d6b6eda1c..f978f9c24fc54e1c723ec4217b003b8a8f0235f4 100644
--- a/src/compiler/raw-machine-assembler.cc
+++ b/src/compiler/raw-machine-assembler.cc
@@ -10,14 +10,16 @@ namespace v8 {
 namespace internal {
 namespace compiler {
 
-RawMachineAssembler::RawMachineAssembler(
-    Graph* graph, MachineCallDescriptorBuilder* call_descriptor_builder,
-    MachineType word)
+RawMachineAssembler::RawMachineAssembler(Graph* graph,
+                                         MachineSignature* machine_sig,
+                                         MachineType word)
     : GraphBuilder(graph),
       schedule_(new (zone()) Schedule(zone())),
       machine_(zone(), word),
       common_(zone()),
-      call_descriptor_builder_(call_descriptor_builder),
+      machine_sig_(machine_sig),
+      call_descriptor_(
+          Linkage::GetSimplifiedCDescriptor(graph->zone(), machine_sig)),
       parameters_(NULL),
       exit_label_(schedule()->end()),
       current_block_(schedule()->start()) {
@@ -95,17 +97,18 @@ Node* RawMachineAssembler::CallFunctionStub0(Node* function, Node* receiver,
 
 
 Node* RawMachineAssembler::CallJS0(Node* function, Node* receiver,
-                                   Node* frame_state) {
+                                   Node* context, Node* frame_state) {
   CallDescriptor* descriptor = Linkage::GetJSCallDescriptor(1, zone());
   Node* call = graph()->NewNode(common()->Call(descriptor), function, receiver,
-                                frame_state);
+                                context, frame_state);
   schedule()->AddNode(CurrentBlock(), call);
   return call;
 }
 
 
 Node* RawMachineAssembler::CallRuntime1(Runtime::FunctionId function,
-                                        Node* arg0, Node* frame_state) {
+                                        Node* arg0, Node* context,
+                                        Node* frame_state) {
   CallDescriptor* descriptor = Linkage::GetRuntimeCallDescriptor(
       function, 1, Operator::kNoProperties, CallDescriptor::kNeedsFrameState,
       zone());
@@ -114,7 +117,6 @@ Node* RawMachineAssembler::CallRuntime1(Runtime::FunctionId function,
   Node* ref = NewNode(
       common()->ExternalConstant(ExternalReference(function, isolate())));
   Node* arity = Int32Constant(1);
-  Node* context = Parameter(1);
 
   Node* call = graph()->NewNode(common()->Call(descriptor), centry, arg0, ref,
                                 arity, context, frame_state);