[infra] Rename analyzer-stable branch builders to have branch suffix.
[infra] Rename analyzer-stable branch builders to have branch suffix.

This change assigns systematic names to the builders for branches, where
those builders end in their branch name as the suffix. This will be used to
identify to which branch the builders belong.

Change-Id: Ifa3be5dbbd45d4f623f70dd36d12426d360b0c30
Reviewed-on: https://dart-review.googlesource.com/c/92741
Reviewed-by: Alexander Thomas <29642742b6693024c89de8232f2e2542cf7eedf7@google.com>
Reviewed-by: William Hesse <a821cddceae7dc400f272e3cb1a72f400f9fed6d@google.com>

dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk