michael@0: evalcx("\
michael@0:     let z = 'x';\
michael@0:     for (var v of z) {\
michael@0:         y = evaluate(\"Object.defineProperty(this,\\\"y\\\",\
michael@0:                          {get:  function() {}}\
michael@0:                     );\",\
michael@0:                {catchTermination: true, saveFrameChain: true}\
michael@0:         );\
michael@0:     }",
michael@0:     newGlobal('')
michael@0: )
michael@0: 
michael@0: evalcx("\
michael@0:     for (x = 0; x < 1; ++x) { \
michael@0:         v = evaluate(\"gc\",{ \
michael@0:             saveFrameChain: true \
michael@0:         })\
michael@0:     }\
michael@0: ", newGlobal(''));