if err != nil {
				return err
			}
			perm = info.Mode() & os.ModePerm
		}

		// Always make copies of directories.
		// If we add a file in the overlay, we don't want to add it in the original.
		if info.IsDir() {
			return os.MkdirAll(dstPath, perm|0200)
		}

		// If we can use a hard link, do that instead of copying bytes.
		// Go builds don't like symlinks in some cases, such as go:embed.

	// file set fset.
	funcAST, fset := parseFunc("example_test.go", "printSelf")

	// Print the function body into buffer buf.
	// The file set is provided to the printer so that it knows
	// about the original source formatting and can add additional
	// line breaks where they were present in the source.
	var buf bytes.Buffer
	printer.Fprint(&buf, fset, funcAST.Body)

	// Remove braces {} enclosing the function body, unindent,

		if shouldStop() {
			return
		}

		for _, pc := range printableChars {
			v[i] = pc
			if try(v) {
				// Successful. Move on to the next byte in v.
				break
			}
			// Unsuccessful. Revert v[i] back to original value.
			v[i] = b
		}
	}

	v = cache.Do(2, func() int { n++; return n })
	if v != 3 {
		t.Fatalf("cache.Do(2) did not run f")
	}
	v = cache.Do(1, func() int { n++; return n })
	if v != 2 {
		t.Fatalf("cache.Do(1) did not returned saved value from original cache.Do(1)")
	}

		// constant initialization expression, pos is the position of
		// the original expression, and not of the currently declared
		// constant identifier. Use the provided errpos instead.
		// TODO(gri) We may also want to augment the error message and
		// refer to the position (pos) in the original expression.
		if check.errpos.Pos().IsKnown() {
			assert(check.iota != nil)
			pos = check.errpos
		}

		// not feasible to do so at the moment: std-vendored libraries are included
		// in the "std" meta-pattern (because in general they *are* linked into
		// users binaries separately from the original import paths), and we can't
		// allow a binary in the "std" meta-pattern.
		modArgs = []string{"-mod=readonly"}
	} else {
		// Nobody outside the standard library should be using this wrapper: other

// parameter's type set.
type T1[P interface{~uint}] struct{}

func _[P any]() {
    _ = T1[P /* ERROR "P does not satisfy interface{~uint}" */ ]{}
}

// This is the original (simplified) program causing the same issue.
type Unsigned interface {
	~uint
}

type T2[U Unsigned] struct {
    s U
}

func (u T2[U]) Add1() U {
    return u.s + 1
}

//
//	file:line
//	 address: assembly
//	 address: assembly
//	 ...
//
// Each stanza gives the disassembly for a contiguous range of addresses
// all mapped to the same original source file and line number.
// This mode is intended for use by pprof.
package main

import (
	"flag"
	"fmt"
	"log"
	"os"
	"regexp"
	"strconv"
	"strings"

	"cmd/internal/objfile"

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package math

// The original C code, the long comment, and the constants
// below are from FreeBSD's /usr/src/lib/msun/src/s_log1p.c
// and came with this notice. The go code is a simplified
// version of the original C.
//
// ====================================================
// Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.

func sysWriteBits() fs.FileMode {
	// Read current umask. There's no way to read it without also setting it,
	// so set it conservatively and then restore the original one.
	m := syscall.Umask(0o777)
	syscall.Umask(m)    // restore bits
	if m&0o22 == 0o22 { // group and world are unwritable by default
		return 0o700
	}
	if m&0o2 == 0o2 { // group is writable by default, but not world