cp go.mod go.mod.orig

! go mod tidy
! stderr panic
stderr '^go: golang\.org/issue46659 imports\n\texample\.com/missingpkg/deprecated: package example\.com/missingpkg/deprecated provided by example\.com/missingpkg at latest version v1\.0\.0 but not at required version v1\.0\.1-beta$'

go mod tidy -e

cmp go.mod go.mod.orig

-- go.mod --
module golang.org/issue46659

go 1.17

// it is "cheap" in the sense of both expense and quality.
//
// cheaprand must not be exported to other packages:
// the rule is that other packages using runtime-provided
// randomness must always use rand.
//
// cheaprand should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:

// Copyright 2018 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 inspect defines an Analyzer that provides an AST inspector
// (golang.org/x/tools/go/ast/inspector.Inspector) for the syntax trees
// of a package. It is only a building block for other analyzers.
//
// Example of use in another analysis:
//
//	import (

modification, are permitted provided that the following conditions are
met:

   * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.

//
// An error is considered to match a target if it is equal to that target or if
// it implements a method Is(error) bool such that Is(target) returns true.
//
// An error type might provide an Is method so it can be treated as equivalent
// to an existing error. For example, if MyError defines
//
//	func (m MyError) Is(target error) bool { return target == fs.ErrExist }
//

// Copyright 2009 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 sync provides basic synchronization primitives such as mutual
// exclusion locks. Other than the [Once] and [WaitGroup] types, most are intended
// for use by low-level library routines. Higher-level synchronization is
// better done via channels and communication.
//

package reflectlite

import (
	"internal/goarch"
	"internal/unsafeheader"
	"unsafe"
)

// Swapper returns a function that swaps the elements in the provided
// slice.
//
// Swapper panics if the provided interface is not a slice.
func Swapper(slice any) func(i, j int) {
	v := ValueOf(slice)
	if v.Kind() != Slice {
		panic(&ValueError{Method: "Swapper", Kind: v.Kind()})
	}

### Iterators

The new [iter] package provides the basic definitions for working with
user-defined iterators.

The [slices] package adds several functions that work with iterators:
- [All](/pkg/slices#All) returns an iterator over slice indexes and values.
- [Values](/pkg/slices#Values) returns an iterator over slice elements.
- [Backward](/pkg/slices#Backward) returns an iterator that loops over
  a slice backward.

//
// Individual elements are sequences of variable-length values (e.g.,
// integers, booleans, strings, go/constant values, cross-references
// to other elements). Package pkgbits provides APIs for encoding and
// decoding these low-level values, but the details of mapping
// higher-level Go constructs into elements is left to higher-level
// abstractions.
//

			if !isNaN(v1) || !isNaN(v2) {
				return false
			}
		}
	}
	return true
}

// Ranger returns a Sender and a Receiver. The Receiver provides a
// Next method to retrieve values. The Sender provides a Send method
// to send values and a Close method to stop sending values. The Next
// method indicates when the Sender has been closed, and the Send