Refactor type resolution logic in getTypeOfSymbol for improved readability and maintainability

[Bashamega]

Fixes #61401

🔹 Improvements:

Better Readability: Uses Map instead of a long chain of ternary operators. More Maintainable: Easily extendable if new checks need to be added. Efficient: Iterates over a small set of conditions rather than multiple if statements.

[Bashamega]

@microsoft-github-policy-service agree