[test] Fix a few flag configurations to make fuzzer happy.

test/mjsunit/fixed-context-shapes-when-recompiling.js

Index: test/mjsunit/fixed-context-shapes-when-recompiling.js
diff --git a/test/mjsunit/fixed-context-shapes-when-recompiling.js b/test/mjsunit/fixed-context-shapes-when-recompiling.js
index 7f88330d381d8f90cd7e015d61e4524810698379..6afc07a4886110bf6b878c1d19415d548440219d 100644
--- a/test/mjsunit/fixed-context-shapes-when-recompiling.js
+++ b/test/mjsunit/fixed-context-shapes-when-recompiling.js
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --min-preparse-length 1 --allow-natives-syntax --lazy-inner-functions
+// Flags: --min-preparse-length=1 --allow-natives-syntax --lazy-inner-functions
 
 // Test that the information on which variables to allocate in context doesn't
 // change when recompiling.