[flang-commits] [flang] [flang][NFC] use mlir::SymbolTable in lowering (PR #86673)

[Slava Zakharin via flang-commits]

https://github.com/vzakhari commented:

Thank you for the fix, Jean!

I have a question about in an inline comment:
```
... it is
  /// not guaranteed to contain all operations of the ModuleOp with Symbol
  /// attribute since mlirSymbolTable must pro-actively be maintained when
  /// new Symbol operations are created.
```

https://github.com/llvm/llvm-project/pull/86673