[llvm-branch-commits] [mlir] [MLIR][Standalone] test Standalone against install distributions (PR #157944)

[Maksim Levental via llvm-branch-commits]

makslevental wrote:

I've refactored the test to work exactly like the `libcxx` tests. It now runs as quickly as the other standalone test:

```
13.38s: MLIR :: Examples/standalone/test.toy
12.82s: MLIR :: Examples/standalone/test.install-dir.toy
```

@boomanaiden154 @christopherbate any other TODOs here?

https://github.com/llvm/llvm-project/pull/157944