The argument ref names, by name when the call gives one and by position among the unnamed ones otherwise.
Exported so built-in-s-four.ts can drop its own copy of this instead of hand-rolling it again; that file
already imports ClassArgRef from here, so the reverse import would cycle.
The argument
refnames, by name when the call gives one and by position among the unnamed ones otherwise. Exported sobuilt-in-s-four.tscan drop its own copy of this instead of hand-rolling it again; that file already imports ClassArgRef from here, so the reverse import would cycle.