counterVar string
}

// File is a wrapper for the state of a file used in the parser.
// The basic parse tree walker is a method of this type.
type File struct {
	fset    *token.FileSet
	name    string // Name of file.
	astFile *ast.File
	blocks  []Block
	content []byte
	edit    *edit.Buffer
	mdb     *encodemeta.CoverageMetaDataBuilder
	fn      Func
	pkg     *Package
}

	"internal/testenv"
	"reflect"
	"regexp"
	"slices"
	"strings"
	"sync"
	"testing"

	. "go/types"
)

// nopos indicates an unknown position
var nopos token.Pos

func mustParse(fset *token.FileSet, src string) *ast.File {
	f, err := parser.ParseFile(fset, pkgName(src), src, parser.ParseComments)
	if err != nil {
		panic(err) // so we don't need to pass *testing.T
	}
	return f
}