TYPE_CHECKING overload with implementation just outside flags second usage, but not first #19015
Description
Bug Report
TYPE_CHECKING overload with implementation just outside flags second usage, but not first
To Reproduce
https://mypy-play.net/?mypy=latest&python=3.12&gist=9aa50566df450052503989e5bba6a3c7
Expected Behavior
No errors (or errors on all use of overload)
Actual Behavior
main.py:14: error: An overloaded function outside a stub file must have an implementation [no-overload-impl]
main.py:20: error: Name "spam" already defined on line 14 [no-redef]
Found 2 errors in 1 file (checked 1 source file)
Your Environment
see playground url