[llvm] [Instrumentor] Runtime bitcode linking controls (PR #216333)

[Johannes Doerfert via llvm-commits]

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@@ -17,7 +17,9 @@
     "runtime_bitcode": "",
     "runtime_bitcode.description": "Link runtime bitcode",
     "inline_runtime": true,
-    "inline_runtime.description": "Inline runtime function calls eagerly"
+    "inline_runtime.description": "Inline runtime function calls eagerly",
+    "runtime_export_symbols": [],
+    "runtime_export_symbols.description": "Runtime symbols that remain externally visible after linking."
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jdoerfert wrote:

We should use multiple configs and runtimes rather than this.

https://github.com/llvm/llvm-project/pull/216333