[llvm] [mlir] [mlir][Python] create MLIRPythonSupport (PR #171775)

[Maksim Levental via llvm-commits]

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@@ -323,24 +319,44 @@ class PyLocation : public BaseContextObject {
   MlirLocation loc;
 };
 
+enum PyMlirDiagnosticSeverity : std::underlying_type<
+    MlirDiagnosticSeverity>::type {
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makslevental wrote:

done

https://github.com/llvm/llvm-project/pull/171775