Don't wrap nosink-marked nodes with a sink
Don't wrap nosink-marked nodes with a sink

This gets rid of the sink operations that were bogusly being placed
on `@a[1] = 42` and `%h<k> = 42` assignments.

MasterDuke17/rakudo,salortiz/rakudo,salortiz/rakudo,nbrown/rakudo,labster/rakudo,labster/rakudo,nbrown/rakudo,labster/rakudo,rakudo/rakudo,tony-o/rakudo,tony-o/rakudo,Gnouc/rakudo,salortiz/rakudo,tony-o/rakudo,nbrown/rakudo,MasterDuke17/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,salortiz/rakudo,rakudo/rakudo,softmoth/rakudo,labster/rakudo,tony-o/rakudo,tbrowder/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,labster/rakudo,nbrown/rakudo,tony-o/rakudo,tony-o/rakudo,Gnouc/rakudo,rakudo/rakudo,softmoth/rakudo,tbrowder/rakudo,softmoth/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,labster/rakudo,softmoth/rakudo,tbrowder/rakudo,salortiz/rakudo,tbrowder/rakudo,softmoth/rakudo,Gnouc/rakudo,rakudo/rakudo,salortiz/rakudo,rakudo/rakudo,nbrown/rakudo,nbrown/rakudo,Gnouc/rakudo