[3.14] gh-137814: Fix __qualname__ of __annotate__ functions in the interpreter ...

[3.14] gh-137814: Fix __qualname__ of __annotate__ functions in the interpreter (#148221)

gh-137814: [3.14] Fix __qualname__ of __annotate__ functions in the interpreter

I'd still like to do #137842 on 3.15+, but that requires changing bytecode and we can't
really afford to do that in 3.14. So to fix this in 3.14, let's patch things up in the
ceval loop instead.

This is safe because the compiler only sets __annotate__ to just-created dedicated
annotate functions.