Allow multiple lines of custom flags in javascript tests.

test/mjsunit/debug-break-inline.js

 // Copyright 2011 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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-// Flags: --expose-debug-as debug --allow-natives-syntax --noparallel-recompilation
+// Flags: --expose-debug-as debug --allow-natives-syntax
+// Flags: --noparallel-recompilation
 
 // This test tests that deoptimization due to debug breaks works for
 // inlined functions where the full-code is generated before the
 // debugger is attached.
 //
 //See http://code.google.com/p/chromium/issues/detail?id=105375
 
 // Get the Debug object exposed from the debug context global object.
 Debug = debug.Debug;
 
@@ skipping 52 matching lines @@
 // Add the debug event listener.
 Debug.setListener(listener);
 
 f();
 
 assertEquals(5, count);
 assertEquals(2, break_count);
 
 // Get rid of the debug event listener.
 Debug.setListener(null);