func assert(b bool) { … } func errorf(format string, args ...any) { … } type fakeFileSet … type fileInfo … const maxlines … func (s *fakeFileSet) pos(file string, line, column int) token.Pos { … } func (s *fakeFileSet) setLines() { … } var fakeLines … var fakeLinesOnce … type derivedInfo … type typeInfo … // See cmd/compile/internal/types.SplitVargenSuffix. func splitVargenSuffix(name string) (base, suffix string) { … }