update tests for the move of tuples to GHC.Tuple.Prim
These changes are part of proposal 475, for which ghc!8735 (closed) implements the renaming of the datacon Solo
to MkSolo
to reduce punning among built-in types.
Part of that is moving those types to a new module, which needs to be reflected in the Haddock tests.
Work sponsored by Tweag
Edited by Torsten Schmits