Let's only allow cryto or libraries.

Co-Authored-By: Mike McQuaid <mike@mikemcquaid.com>

Co-Authored-By: Mike McQuaid <mike@mikemcquaid.com>

Co-Authored-By: Mike McQuaid <mike@mikemcquaid.com>

- Only try to call `.match?` on strings that aren't nil.

 - Split off from PR Homebrew/brew#6209
 - Create stand alone class for cop w/ auto-correct

And remove all dead/unneeded code.

- Add some `odeprecated`
- Make some `odeprecated` now `odisabled`
- Remove `odisabled` code.
- Remove old update migrations
- Remove GCC 4.0 compiler
- Remove Tiger-only code
- Remove 32-bit-only code
- Remove use of LD64
- Remove GCC 4.3 - 4.8 support.

Make the filenames consistent with the class names.

Use 124 max line length everywhere. Also, reduce tap max line length to
189 as Homebrew/homebrew-core has that as a maximum now. In future
Homebrew/homebrew-core will also be reduced to 124 maximum line length.

Share the regex where possible and otherwise ensure they are identical.

You need a start of line check in this regex (like was added in the
others) to allow things like `#{bin}/clang++`.

We only care about e.g. `gcc`/`llvm-gcc`/`clang` being at the beginning
of a `system` call and not anywhere within the string.