[csa] Add CSA::CallBuiltin and Builtins::CallableFor

src/builtins/builtins.h

Index: src/builtins/builtins.h
diff --git a/src/builtins/builtins.h b/src/builtins/builtins.h
index df6ca6c0f10e1aef7b1abe6475bc0877a24894fa..e0e487fc9ab087b7262c467b70dbae00f0e4a20a 100644
--- a/src/builtins/builtins.h
+++ b/src/builtins/builtins.h
@@ -11,6 +11,7 @@
 namespace v8 {
 namespace internal {
 
+class Callable;
 template <typename T>
 class Handle;
 class Isolate;
@@ -886,6 +887,10 @@ class Isolate;
 
 #define BUILTIN_LIST_ALL(V) BUILTIN_LIST(V, V, V, V, V, V, V)
 
+#define BUILTIN_LIST_TFS(V)                                       \
+  BUILTIN_LIST(IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN, V, \
+               IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN)
+
 #define BUILTIN_LIST_C(V)                                            \
   BUILTIN_LIST(V, V, IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN, \
                IGNORE_BUILTIN, IGNORE_BUILTIN)
@@ -959,6 +964,8 @@ class Builtins {
     return reinterpret_cast<Address>(&builtins_[name]);
   }
 
+  static Callable CallableFor(Isolate* isolate, Name name);
+
   static const char* name(int index);
 
   // Returns the C++ entry point for builtins implemented in C++, and the null