Better error on "if expression" (#4172)
Better error on "if expression" (#4172)

fixes #4169
cseed/hail,cseed/hail,danking/hail,cseed/hail,danking/hail,danking/hail,hail-is/hail,danking/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,danking/hail,hail-is/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,hail-is/hail,danking/hail