[ignition] Create the type feedback vector after bytecode generation

src/type-feedback-vector.h

Index: src/type-feedback-vector.h
diff --git a/src/type-feedback-vector.h b/src/type-feedback-vector.h
index c9eae023a867951103cf4dc76e4a4d8decdb0260..3f896226e81ca16fca150502117789dcd729777c 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -217,6 +217,11 @@ class TypeFeedbackMetadata : public FixedArray {
   template <typename Spec>
   static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec);
 
+  // Ensure that the given shared function info has type feedback metadata with
+  // the given spec.
+  static void EnsureAllocated(Isolate* isolate, Handle<SharedFunctionInfo> sfi,
+                              const FeedbackVectorSpec* spec);
+
 #ifdef OBJECT_PRINT
   // For gdb debugging.
   void Print();