t.Tag.goString(indent+2, "Tag: "))
}

// PackExpansion is a pack expansion.  The Pack field may be nil.
type PackExpansion struct {
	Base AST
	Pack *ArgumentPack
}

func (pe *PackExpansion) print(ps *printState) {
	// We normally only get here if the simplify function was
	// unable to locate and expand the pack.
	if pe.Pack == nil {
		if ps.llvmStyle {
			ps.print(pe.Base)
		} else {

func (f *File) ParseGo(abspath string, src []byte) {
	// Two different parses: once with comments, once without.
	// The printer is not good enough at printing comments in the
	// right place when we start editing the AST behind its back,
	// so we use ast1 to look for the doc comments on import "C"
	// and on exported functions, and we use ast2 for translating
	// and reprinting.
	// In cgo mode, we ignore ast2 and just apply edits directly