[stubs] Using template magic to get the call interface descriptor type from callable.

src/interpreter/interpreter.h

Index: src/interpreter/interpreter.h
diff --git a/src/interpreter/interpreter.h b/src/interpreter/interpreter.h
index 48940d267fbf1b5f93ba232403728ee017b98ec8..8be1746100ab3d69c3964fa5e51db981a6655f0d 100644
--- a/src/interpreter/interpreter.h
+++ b/src/interpreter/interpreter.h
@@ -83,7 +83,7 @@ class Interpreter {
 
   // Generates code to perform the unary operation via |callable| and stores
   // the result to the accumulator.
-  void DoUnaryOp(Callable callable, InterpreterAssembler* assembler);
+  void DoUnaryOp(const Callable& callable, InterpreterAssembler* assembler);
 
   // Generates code to perform the unary operation via |Generator|.
   template <class Generator>
@@ -94,12 +94,15 @@ class Interpreter {
   void DoCompareOp(Token::Value compare_op, InterpreterAssembler* assembler);
 
   // Generates code to perform a global store via |ic|.
+  template <typename Descriptor>
   void DoStaGlobal(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a named property store via |ic|.
+  template <typename Descriptor>
   void DoStoreIC(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a keyed property store via |ic|.
+  template <typename Descriptor>
   void DoKeyedStoreIC(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to perform a JS call that collects type feedback.
@@ -136,13 +139,16 @@ class Interpreter {
   compiler::Node* BuildLoadContextSlot(InterpreterAssembler* assembler);
 
   // Generates code to load a global.
+  template <typename Descriptor>
   compiler::Node* BuildLoadGlobal(Callable ic, InterpreterAssembler* assembler);
 
   // Generates code to load a named property.
+  template <typename Descriptor>
   compiler::Node* BuildLoadNamedProperty(Callable ic,
                                          InterpreterAssembler* assembler);
 
   // Generates code to load a keyed property.
+  template <typename Descriptor>
   compiler::Node* BuildLoadKeyedProperty(Callable ic,
                                          InterpreterAssembler* assembler);
 
@@ -156,7 +162,7 @@ class Interpreter {
                                InterpreterAssembler* assembler);
 
   // Generates code to perform the unary operation via |callable|.
-  compiler::Node* BuildUnaryOp(Callable callable,
+  compiler::Node* BuildUnaryOp(const Callable& callable,
                                InterpreterAssembler* assembler);
 
   uintptr_t GetDispatchCounter(Bytecode from, Bytecode to) const;