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

[Tom Eccles via flang-commits]

https://github.com/tblah approved this pull request.

This looks good. Thanks.

I guess we could theoretically always build a symbol table for each builder (as it only needs to know the ModuleOp). Is the concern here that it would be too hard to keep in sync or that it would make instantiating a builder too slow?

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