[generators] Decouple generator resume from fullcodegen.

src/code-factory.h

Index: src/code-factory.h
diff --git a/src/code-factory.h b/src/code-factory.h
index deb125f224d9221b579dd4accc806d0bfa06f0a0..698cad19c4e9aad635896928212760d0b3e7a63c 100644
--- a/src/code-factory.h
+++ b/src/code-factory.h
@@ -56,6 +56,8 @@ class CodeFactory final {
 
   static Callable StoreInterceptor(Isolate* isolate);
 
+  static Callable ResumeGenerator(Isolate* isolate);
+
   static Callable CompareIC(Isolate* isolate, Token::Value op);
   static Callable CompareNilIC(Isolate* isolate, NilValue nil_value);