[llvm] [mlir] [DebugInfo][RemoveDIs] Rip out the UseNewDbgInfoFormat flag (PR #143207)

[Jeremy Morse via llvm-commits]

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@@ -954,6 +931,12 @@ TEST(MetadataTest, ConvertDbgToDbgVariableRecord) {
     !11 = !DILocation(line: 1, column: 1, scope: !6)
 )");
 
+  // The IR above will be autoupgraded to debug records: but this test is about
+  // the conversion routines, so convert it back. This test will have value
+  // going forwards as we're likely to have a few corner cases where we want to
+  // use intrinsics. 
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jmorse wrote:

Added comment about how DXIL is likely to want this to keep working, thus we need to keep testing it.

https://github.com/llvm/llvm-project/pull/143207