[clang] [lldb] [llvm] [cmake] Build executables with -no_exported_symbols when building Apple toolchain (PR #87684)

[Jonas Devlieghere via cfe-commits]

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@@ -673,6 +673,9 @@ option(LLVM_USE_OPROFILE
 option(LLVM_EXTERNALIZE_DEBUGINFO
   "Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)
 
+option(LLVM_ENABLE_EXPORTED_SYMBOLS
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JDevlieghere wrote:

@delcypher I was referring to the tools in `/llvm-project/llvm/tools`, which use `add_llvm_tool_subdirectory` and `add_llvm_tool` but maybe the distinction is more murky than I think it is. I'm also fine with `EXECUTABLE` in the name 👍

https://github.com/llvm/llvm-project/pull/87684