[Mlir-commits] [mlir] [mlir][Python] use canonical Python `isinstance` instead of `Type.isinstance` (PR #172892)

[Maksim Levental]

makslevental wrote:

FYI I'm gonna wait to merge this until [MLIRPythonSupport](https://github.com/llvm/llvm-project/pull/171775) lands 

https://github.com/llvm/llvm-project/pull/172892