RFR: 8366561: Improve documentation for how the -Xlint flag works [v2]

[Archie Cobbs]

> This is a documentation-only change to improve compiler documentation around the `-Xlint` flag and lint categories.
> 
> * Changes to `--help` output:
>   * Note that `--enable-preview` disables the `preview` lint category as a side-effect
> 
> * Changes to `--help-extra` output:
>   * Refer to "lint warning categories" instead of "warning categories" when appropriate (not all warnings are lint warnings)
>   * Note that `-Xlint` enables all lint categories (sync with man page)
>   * Note that some categories are enabled by default even without any `-Xlint` flags
> 
> * Changes to `--help-lint` output:
>   * Refer to "lint warning categories" instead of "warning categories" when appropriate (not all warnings are lint warnings)
>   * Sort lint categories and aliases alphabetically together
>   * Indicate which lint categories are enabled by default with an asterisk
>   * Tighten up "alias" verbiage and generalize it to work with future possible category aliases
>   * Add a footer blurb clarifying that aliases are fully interchangeable with their primary keys
> 
> * Changes to `module-info.java` javadoc:
>   * Clarify that `@SuppressWarnings` ignores unrecognized strings
>   * Remove lint categories not actually supported by `@SuppressWarnings` from the list of such
> 
> * Changes to the `javac(1)` man page:
>   * Sync with the above changes to `--help`, `--help-extra`, and `--help-lint`

Archie Cobbs has updated the pull request incrementally with one additional commit since the last revision:

  Changes based on CSR review suggestions.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/27129/files
  - new: https://git.openjdk.org/jdk/pull/27129/files/410a3f57..a497a469

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27129&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27129&range=00-01

  Stats: 67 lines in 4 files changed: 45 ins; 4 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/27129.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27129/head:pull/27129

PR: https://git.openjdk.org/jdk/pull/27129