[clang] [llvm] Reapply "[clang][ssaf] Add --ssaf-extract-summaries= and --ssaf-tu-summary-file= options" (PR #186463)

[Balázs Benics via cfe-commits]

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@@ -0,0 +1,22 @@
+// DEFINE: %{filecheck} = FileCheck %s --match-full-lines --check-prefix
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steakhal wrote:

Ah, I should have put these tests under the `Scalable` directory. I'll address this.

https://github.com/llvm/llvm-project/pull/186463