func f1() {}
func f2() {}

func (*t1) f1() {}
func (t1) f1() {}
func (t1) f2() {}

func (t2) f1() {}
func (t2) f2() {}
func (x *t2) f2() {}
`

// Calling ast.MergePackageFiles with ast.FilterFuncDuplicates
// keeps a duplicate entry with attached documentation in favor
// of one without, and it favors duplicate entries appearing
// later in the source over ones appearing earlier. This is why

// Merging of package files

// The MergeMode flags control the behavior of [MergePackageFiles].
type MergeMode uint

const (
	// If set, duplicate function declarations are excluded.
	FilterFuncDuplicates MergeMode = 1 << iota
	// If set, comments that are not associated with a specific
	// AST node (as Doc or Comment) are excluded.
	FilterUnassociatedComments
	// If set, duplicate import declarations are excluded.

		{"File.Scope", Field, 0},
		{"File.Unresolved", Field, 0},
		{"FileExports", Func, 0},
		{"Filter", Type, 0},
		{"FilterDecl", Func, 0},
		{"FilterFile", Func, 0},
		{"FilterFuncDuplicates", Const, 0},
		{"FilterImportDuplicates", Const, 0},
		{"FilterPackage", Func, 0},
		{"FilterUnassociatedComments", Const, 0},
		{"ForStmt", Type, 0},
		{"ForStmt.Body", Field, 0},

pkg fmt, type Stringer interface { String }
pkg fmt, type Stringer interface, String() string
pkg go/ast, const Bad ObjKind
pkg go/ast, const Con ObjKind
pkg go/ast, const FilterFuncDuplicates MergeMode
pkg go/ast, const FilterImportDuplicates MergeMode
pkg go/ast, const FilterUnassociatedComments MergeMode
pkg go/ast, const Fun ObjKind
pkg go/ast, const Lbl ObjKind
pkg go/ast, const Pkg ObjKind

pkg flag, const ContinueOnError = 0
pkg flag, const ExitOnError = 1
pkg flag, const PanicOnError = 2
pkg go/ast, const Bad = 0
pkg go/ast, const Con = 2
pkg go/ast, const FilterFuncDuplicates = 1
pkg go/ast, const FilterImportDuplicates = 4
pkg go/ast, const FilterUnassociatedComments = 2
pkg go/ast, const Fun = 5
pkg go/ast, const Lbl = 6
pkg go/ast, const Pkg = 1
pkg go/ast, const RECV = 2