don't assume world has children in debugger
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0d8115a940
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ba9ba118a6
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@ -60,7 +60,7 @@ M: debugger focusable-child*
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GENERIC: error-in-debugger? ( error -- ? )
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M: world-error error-in-debugger? world>> gadget-child debugger? ;
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M: world-error error-in-debugger? world>> children>> [ f ] [ first debugger? ] if-empty ;
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M: object error-in-debugger? drop f ;
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