Add regression test for #20568
GHC produced broken executables with rebindable if and -fhpc
if ifThenElse
expected non-Bool condition until GHC 9.0. This MR adds a simple regression test.
GHC produced broken executables with rebindable if and -fhpc
if ifThenElse
expected non-Bool condition until GHC 9.0. This MR adds a simple regression test.