[llvm] [WebAssembly] Rename legacy EH mir tests (PR #107189)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-webassembly

Author: Heejin Ahn (aheejin)

<details>
<summary>Changes</summary>

We added `-legacy` suffix to the legacy EH `ll` tests in #<!-- -->107166 but forgot to do the same for `mir` tests.

---
Full diff: https://github.com/llvm/llvm-project/pull/107189.diff


2 Files Affected:

- (renamed) llvm/test/CodeGen/WebAssembly/cfg-stackify-eh-legacy.mir () 
- (renamed) llvm/test/CodeGen/WebAssembly/exception-legacy.mir () 


``````````diff
diff --git a/llvm/test/CodeGen/WebAssembly/cfg-stackify-eh.mir b/llvm/test/CodeGen/WebAssembly/cfg-stackify-eh-legacy.mir
similarity index 100%
rename from llvm/test/CodeGen/WebAssembly/cfg-stackify-eh.mir
rename to llvm/test/CodeGen/WebAssembly/cfg-stackify-eh-legacy.mir
diff --git a/llvm/test/CodeGen/WebAssembly/exception.mir b/llvm/test/CodeGen/WebAssembly/exception-legacy.mir
similarity index 100%
rename from llvm/test/CodeGen/WebAssembly/exception.mir
rename to llvm/test/CodeGen/WebAssembly/exception-legacy.mir

``````````

</details>


https://github.com/llvm/llvm-project/pull/107189