Give sensible error message for named arguments with literal operators
Give sensible error message for named arguments with literal operators

jonas-l/ponyc,lukecheeseman/ponyta,Perelandric/ponyc,ryanai3/ponyc,ponylang/ponyc,ryanai3/ponyc,darach/ponyc,boemmels/ponyc,doublec/ponyc,pap/ponyc,dipinhora/ponyc,sgebbie/ponyc,ponylang/ponyc,influx6/ponyc,Theodus/ponyc,Theodus/ponyc,sgebbie/ponyc,Theodus/ponyc,kulibali/ponyc,jupvfranco/ponyc,Theodus/ponyc,ponylang/ponyc,jupvfranco/ponyc,Perelandric/ponyc,jonas-l/ponyc,kulibali/ponyc,mkfifo/ponyc,boemmels/ponyc,Perelandric/ponyc,boemmels/ponyc,boemmels/ponyc,CausalityLtd/ponyc,boemmels/ponyc,lukecheeseman/ponyta,jupvfranco/ponyc,influx6/ponyc,malthe/ponyc,jonas-l/ponyc,mkfifo/ponyc,Praetonus/ponyc,cquinn/ponyc,jemc/ponyc,sgebbie/ponyc,jupvfranco/ponyc,cquinn/ponyc,gwelr/ponyc,dckc/ponyc,darach/ponyc,Perelandric/ponyc,CausalityLtd/ponyc,malthe/ponyc,gwelr/ponyc,malthe/ponyc,malthe/ponyc,kulibali/ponyc,lukecheeseman/ponyta,jemc/ponyc,pap/ponyc,dckc/ponyc,Perelandric/ponyc,cquinn/ponyc,dipinhora/ponyc,Praetonus/ponyc,mkfifo/ponyc,Praetonus/ponyc,doublec/ponyc,mkfifo/ponyc,shlomif/ponyc,Theodus/ponyc,shlomif/ponyc,kulibali/ponyc,jemc/ponyc,sgebbie/ponyc,pap/ponyc,sgebbie/ponyc,cquinn/ponyc,jupvfranco/ponyc,Praetonus/ponyc,mkfifo/ponyc,doublec/ponyc,ryanai3/ponyc,CausalityLtd/ponyc,dipinhora/ponyc,darach/ponyc