/cc @cooldome #13347 introduced a regression:
isNamedTuple(MyGenericTuple[int]) is now false

Example

type Foo3[T] = tuple[x:int, y: T] echo isNamedTuple(Foo3[int8])

Current Output

false 

Expected Output

true 

Additional Information

• root cause of CI failure for replace old problematic isNamedTuple implementation by TypeTrait isNamedTuple in dollars.nim #13347
• regression introduced in distinctBase type trait for distinct types #13031
• the old implementation i wrote didn't have this issue:

proc isNamedTuple(T: typedesc): bool = when T isnot tuple: result = false else: var t: T for name, _ in t.fieldPairs: when name == "Field0": return compiles(t.Field0) else: return true return false

however it had subtle issues so #13031 is good, but the code in semmagic.nim needs to fix this