[llvm] [llvm-debuginfo-analyzer] Fix crash with WebAssembly dead code (PR #141616)

[Carlos Alberto Enciso via llvm-commits]

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@@ -193,11 +193,17 @@ class LVCodeViewReader final : public LVBinaryReader {
                    llvm::object::COFFObjectFile &Obj, ScopedPrinter &W,
                    StringRef ExePath)
       : LVBinaryReader(Filename, FileFormatName, W, LVBinaryType::COFF),
-        Input(&Obj), ExePath(ExePath), LogicalVisitor(this, W, Input) {}
+        Input(&Obj), ExePath(ExePath), LogicalVisitor(this, W, Input) {
+    // CodeView does not have the concept of 'tombstone' address.
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CarlosAlbertoEnciso wrote:

That is a very good point. Moving the `tombstone` to the `LVDWARFReader` makes the approach very clean with no extra dependencies.

https://github.com/llvm/llvm-project/pull/141616