Commit 1ba5b64d authored by Mattias Engdegård's avatar Mattias Engdegård

Optimise 'while' bodies for effect

* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Treat all expressions in the body of 'while' as for-effect,
since their values are discarded.  This also finds some errors.
parent af085ef4
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