[llvm] [DTLTO] [LLVM] Initial DTLTO cache implementation (PR #156433)

[Katya Romanova via llvm-commits]

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@@ -0,0 +1,66 @@
+REQUIRES: x86-registered-target, ld.lld
+
+# This test verifies that a cache populated by a ThinLTO link is not reused by a DTLTO link and vice versa.
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romanova-ekaterina wrote:

Changed everywhere in the test. Hopefully, current wording is better. If not, I will re-write it.

https://github.com/llvm/llvm-project/pull/156433