RCO too eager, interferes with explicate

[jsiek]

For example,

print(42 if not (x == y) else 5)

compiles to more efficient code if RCO doesn't create a temporary for x == y.

[elavoie]

As discussed here: https://github.com/IUCompilerCourse/Essentials-of-Compilation/issues/179#issuecomment-2410329047

This can be solved by partially evaluating the not operation before the RCO pass, resulting in:

print(42 if x != y else 5)