Do not prettify || after various symbols

Author: Chris00

rust-mode.el

@@ -227,7 +227,7 @@ See `prettify-symbols-compose-predicate'."
        (pcase match
          ("||" (not (save-excursion
                       (goto-char start)
-                      (looking-back "\\(?:\\<move\\|=\\) *"))))
+                      (looking-back "\\(?:\\<move\\|[[({:=,;]\\) *"))))
          ("&&" (char-equal (char-after end) ?\s))
          (_ t))))