Revert whitespace changes. Restore a condition-case in comp.el

Revert whitespace changes.  Restore a condition-case in comp.el

* lisp/emacs-lisp/byte-run.el (defun)
* lisp/emacs-lisp/cl-generic.el
(cl-generic-define-context-rewriter)
* lisp/emacs-lisp/pcase.el (pcase--expand)
* src/eval.c (Ffunction): Revert whitespace changes.

* lisp/emacs-lisp/comp.el (comp--native-compile): Revert
deletion of a condition-case.

* lisp/emacs-lisp/nadvice.el (advice--equal): Remove commented
out diagnostics.