[llvm] [LLVM] Specialize test suites for `TableGen` and `FileCheck` to use smaller set of dependencies (PR #155929)

[Sergei Barannikov via llvm-commits]

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@@ -59,100 +59,106 @@ configure_lit_site_cfg(
 
 # Set the depends list as a variable so that it can grow conditionally.
 # NOTE: Sync the substitutions in test/lit.cfg when adding to this list.
+
+set(LLVM_TEST_DEPENDS_COMMON
+  FileCheck
+  count
+  llvm-config
+  not
+  prepare-check-lit
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s-barannikov wrote:

I also started seeing "Preparing lit tests" message that I haven't seen before. (It doesn't break build for me, but the copying requires some time, which can be frustrating.)

https://github.com/llvm/llvm-project/pull/155929