[clang] [llvm] [DLCov 3/5] Implement DebugLoc origin-tracking (PR #107369)

[Stephen Tozer via cfe-commits]

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@@ -115,6 +138,23 @@ namespace llvm {
     DebugLocKind getKind() const { return Loc.Kind; }
 #endif
 
+#if ENABLE_DEBUGLOC_ORIGIN_TRACKING
+#if !ENABLE_DEBUGLOC_COVERAGE_TRACKING
+#error Cannot enable DebugLoc origin-tracking without coverage-tracking!
+#endif
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SLTozer wrote:

I figured it'd be worth keeping something in the source just in case of some weird scenario with leaky environment variables; it's not likely to happen, but this will give a much cleaner error if it does.

https://github.com/llvm/llvm-project/pull/107369