Fixes Homebrew/homebrew#31360.

Closes Homebrew/homebrew#31384.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

This matches the new markdown styling a bit better.

For easier capturing.

Closes Homebrew/homebrew#31303.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Closes Homebrew/homebrew#30540.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

The major version is implicit in the compiler name. Since the name is
used when matching failures to compilers, we don't need to consider the
major version separately.

major_version is now only used internally by the failure object

If formulae names are passed as arguments check if just they are outdated. Additionally, return a failed code if they are outdated.

This will hopefully be able to stop people complaining about the outdated error code as they can now just run e.g.:
`brew outdated git && brew upgrade git`

Closes Homebrew/homebrew#31242.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

This code is supposed to allow

  depends_on "foo" => "with-bar"

to work when foo has only a "without-bar" option.

The options system was not designed to support this. Unfortunately, it
was bolted on anyway. The implementation is extremely difficult to
understand, and it only works for certain types of options, which is
confusing from a user's point of view. Luckily, no formulae in core or
the official taps rely on the behavior in order to function.

It is hindering progress in improving this code, so I am removing it.

Since the Tab is written in the build process, the formula's build
object will have the correct args attached to it already, so we don't
need to reconstruct it.