[llvm-debuginfo-analyzer] Fix crash with WebAssembly dead code (#141616) https://github.com/llvm/llvm-project/issues/136772 Incorrect handling of 'tombstone' value for WebAssembly. llvm-debuginfo-analyzer already uses the tombstone approach to identify dead code. Currently, the tombstone value is evaluated as std::numeric_limits<uint64_t>::max(). Which is wrong as it does not take into account the 'Address Byte Size' from the Compile Unit header.
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