- free_vars_of (EvId v) = [v]
- free_vars_of (EvCast v co) = v : varSetElems (tyVarsOfType co)
- free_vars_of (EvCoercion co) = varSetElems (tyVarsOfType co)
- free_vars_of (EvDFunApp _ _ vs) = vs
- free_vars_of (EvSuperClass d _) = [d]
+ free_vars_of (EvId v) = [v]
+ free_vars_of (EvCast v co) = v : varSetElems (tyVarsOfType co)
+ free_vars_of (EvCoercion co) = varSetElems (tyVarsOfType co)
+ free_vars_of (EvDFunApp _ _ vs _) = vs
+ free_vars_of (EvSuperClass d _) = [d]