Move M5-14-1 implementation into shared query with Rule 8.14.1, increase test coverage.#1050

MichaelRFairhurst wants to merge 5 commits intomaingithub/codeql-coding-standards:mainfrom

michaelrfairhurst/side-effects-5-rule-8-14-1-rhs-of-and-and-should-have-no-side-effectsgithub/codeql-coding-standards:michaelrfairhurst/side-effects-5-rule-8-14-1-rhs-of-and-and-should-have-no-side-effectsCopy head branch name to clipboard