[llvm] [DA] Add option to enable specific dependence test only (PR #164245)

[Michael Kruse via llvm-commits]

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Meinersbur wrote:

Would have been nice for each test method to have a test case that only that method can process. The `consistent output [*]` checks are negative tests (tests for something to not work). Only `-da-enable-dependence-test=strong-siv` is really tested here.

On the other side, I am already happy with the fine granularity of this PR.

https://github.com/llvm/llvm-project/pull/164245