[clang] [clang] Only build static analyzer sources if requested (PR #71653)

[Timm Baeder via cfe-commits]

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@@ -23,7 +23,9 @@ add_subdirectory(Tooling)
 add_subdirectory(DirectoryWatcher)
 add_subdirectory(Index)
 add_subdirectory(IndexSerialization)
-add_subdirectory(StaticAnalyzer)
+if(CLANG_ENABLE_STATIC_ANALYZER)
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tbaederr wrote:

Well yes, but I'm not introducing the option here, I'm just making it work.

https://github.com/llvm/llvm-project/pull/71653