FFI Compiler based on code stub assembler

src/compiler/code-assembler.h

Index: src/compiler/code-assembler.h
diff --git a/src/compiler/code-assembler.h b/src/compiler/code-assembler.h
index 7e3aa7ee2230b8a9bce42904bc627f079928b0dc..339e277ae684cc5ea0a76c2d068c53a95e646d53 100644
--- a/src/compiler/code-assembler.h
+++ b/src/compiler/code-assembler.h
@@ -227,6 +227,7 @@ class V8_EXPORT_PRIVATE CodeAssembler {
   bool ToIntPtrConstant(Node* node, intptr_t& out_value);
 
   Node* Parameter(int value);
+  Node* GetJSContextParameter();
   void Return(Node* value);
   void PopAndReturn(Node* pop, Node* value);
 
@@ -364,6 +365,9 @@ class V8_EXPORT_PRIVATE CodeAssembler {
                     args...);
   }
 
+  Node* CallCFunctionN(Signature<MachineType>* signature, int input_count,
+                       Node* const* inputs);
+
   // Call to a C function with two arguments.
   Node* CallCFunction2(MachineType return_type, MachineType arg0_type,
                        MachineType arg1_type, Node* function, Node* arg0,