[generators] Get better clusterfuzz coverage.

test/mjsunit/harmony/generators-turbo.js

Index: test/mjsunit/harmony/generators-turbo.js
diff --git a/test/mjsunit/harmony/generators.js b/test/mjsunit/harmony/generators-turbo.js
similarity index 97%
copy from test/mjsunit/harmony/generators.js
copy to test/mjsunit/harmony/generators-turbo.js
index ce68fd0175341c0e9afb40b42b2d711763daf4ac..d12c8cffe1aae50ef5830aafe585d88d257d7ae5 100644
--- a/test/mjsunit/harmony/generators.js
+++ b/test/mjsunit/harmony/generators-turbo.js
@@ -2,8 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --ignition-generators --harmony-do-expressions
-// Flags: --allow-natives-syntax
+// Flags: --ignition --ignition-generators --harmony-do-expressions
+// Flags: --allow-natives-syntax --turbo --turbo-from-bytecode
+
+
+// This file is identical to mjsunit/harmony/generators.js, except for its Flags
+// lines. The purpose is to explicitly mention --turbo-from-bytecode such that
+// Clusterfuzz can thoroughly test the new generators implementation.
 
 
 function MaybeOptimizeOrDeoptimize(f) {