[llvm] [DebugInfo][RemoveDIs] Use autoupgrader to convert old debug-info (PR #143452)

[Orlando Cazalet-Hyams via llvm-commits]

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@@ -43,8 +41,6 @@ DbgMarker *BasicBlock::createMarker(Instruction *I) {
 }
 
 DbgMarker *BasicBlock::createMarker(InstListType::iterator It) {
-  assert(IsNewDbgInfoFormat &&
-         "Tried to create a marker in a non new debug-info block!");
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OCHyams wrote:

Are the `IsNewDbgInfoFormat` deletions (here and in the unittest) from a different patch in the series? 

https://github.com/llvm/llvm-project/pull/143452