[llvm] [CodeGen][NewPM] Port `AsmPrinter` to new pass manager (PR #99320)

[Matt Arsenault via llvm-commits]

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@@ -905,6 +921,78 @@ class AsmPrinter : public MachineFunctionPass {
   }
 };
 
+class AsmPrinterInitializePass
+    : public PassInfoMixin<AsmPrinterInitializePass> {
+  std::shared_ptr<AsmPrinter> Printer;
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arsenm wrote:

What if the first pass owned the pointer, the next 2 depend on it, and the second 2 only use a non-smart reference? 

https://github.com/llvm/llvm-project/pull/99320