[v0.3.3 regression]: F811 incorrectly emitted if a symbol in a stub is re-exported and a symbol by the same name is defined in a different scope

[AlexWaygood]

Starting in v0.3.3, Ruff incorrectly emits F811 on this snippet if it's a .pyi file:

from foo import Bar as Bar

class Eggs:
    Bar: int  # F811 Redefinition of unused `Bar` from line 1

This shouldn't be flagged as a redefinition, as the Eggs.Bar variable is being defined in a different scope to the global Bar variable, which is being re-exported from the module. The regression bisects to 4b06669 (by me).