-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.linux-amd64"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.linux-arm"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.linux-s390x"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

//gofmt -r=x->x

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

// Field tags are *ast.BasicLit nodes that are nil when the tag is
// absent. These nil nodes must not be mistaken for expressions,
// the rewriter should not try to dereference them. Was issue 2410.
type Foo struct {
	Field int

Text.

1. Not a list
2. because it is
3. unindented.

4. This one
  is a list
  because of the indented text.
5. More wrapped
  items.
6. And unwrapped.

7. The blank line stops the heuristic.
-- gofmt --
Text.

1. Not a list
2. because it is
3. unindented.

 4. This one
    is a list
    because of the indented text.
 5. More wrapped
    items.
 6. And unwrapped.

//gofmt -s

// Test cases for range simplification.
package p

func _() {
	for a, b = range x {
	}
	for a = range x {
	}
	for _, b = range x {
	}
	for range x {
	}

	for a = range x {
	}
	for range x {
	}

	for a, b := range x {
	}
	for a := range x {
	}
	for _, b := range x {
	}

	for a := range x {
	}

//gofmt -r=a&&b!=2->a

// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Issue 18987.

package p

-- input --

	1. This list
	2. Starts the comment
	3. And also has a blank line before it.

All of which is a little weird.
-- gofmt --
 1. This list
 2. Starts the comment
 3. And also has a blank line before it.

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.dragonfly-amd64"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.ios-arm64"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused