}
				break
			}
			error_(r.Pos(), "call of non-function C.%s", fixGo(r.Name.Go))
			break
		}
		if r.Context == ctxCall2 {
			if builtinDefs[r.Name.Go] != "" {
				error_(r.Pos(), "no two-result form for C.%s", r.Name.Go)
				break
			}
			// Invent new Name for the two-result function.
			n := f.Name["2"+r.Name.Go]
			if n == nil {