[llvm] [WebAssembly] Use RefTypeMem2Local instead of Mem2Reg (PR #83196)

[Derek Schuff via llvm-commits]

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@@ -1,4 +1,5 @@
 ; RUN: opt < %s -wasm-ref-type-mem2local -S | FileCheck %s
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dschuff wrote:

Since we always want llc to run this pass and can test it this way, do we still need the standalone opt test too?

https://github.com/llvm/llvm-project/pull/83196