func (p Pos) Filename() string { return p.base.Pos().RelFilename() }

// Base returns the position base.
func (p Pos) Base() *PosBase { return p.base }

// SetBase sets the position base.
func (p *Pos) SetBase(base *PosBase) { p.base = base }

// RelFilename returns the filename recorded with the position's base.
func (p Pos) RelFilename() string { return p.base.Filename() }

	file := check.files[fileNo]
	if pos := file.Pos(); pos.IsKnown() {
		// return check.fset.File(pos).Name()
		// TODO(gri) do we need the actual file name here?
		return pos.RelFilename()
	}
	return fmt.Sprintf("file[%d]", fileNo)
}

func (check *Checker) importPackage(pos syntax.Pos, path, dir string) *Package {
	// If we already have a package for the given (path, dir)

			continue
		}
		if msg := perr.Msg; msg != test.msg {
			t.Errorf("%s: got msg = %q; want %q", test.src, msg, test.msg)
		}

		pos := perr.Pos
		if filename := pos.RelFilename(); filename != test.filename {
			t.Errorf("%s: got filename = %q; want %q", test.src, filename, test.filename)
		}
		if line := pos.RelLine(); line != test.line {

	dcl := preInliningDcls(fnsym)
	m := make(map[varPos]int)
	for i, n := range dcl {
		pos := base.Ctxt.InnermostPos(n.Pos())
		vp := varPos{
			DeclName: n.Sym().Name,
			DeclFile: pos.RelFilename(),
			DeclLine: pos.RelLine(),
			DeclCol:  pos.RelCol(),
		}
		if _, found := m[vp]; found {