build: move package sources from src/pkg to src

Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.

src/pkg/testing/example.go

@@ -1,100 +0,0 @@
-// 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 testing
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"strings"
-	"time"
-)
-
-type InternalExample struct {
-	Name   string
-	F      func()
-	Output string
-}
-
-func RunExamples(matchString func(pat, str string) (bool, error), examples []InternalExample) (ok bool) {
-	ok = true
-
-	var eg InternalExample
-
-	for _, eg = range examples {
-		matched, err := matchString(*match, eg.Name)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "testing: invalid regexp for -test.run: %s\n", err)
-			os.Exit(1)
-		}
-		if !matched {
-			continue
-		}
-		if !runExample(eg) {
-			ok = false
-		}
-	}
-
-	return
-}
-
-func runExample(eg InternalExample) (ok bool) {
-	if *chatty {
-		fmt.Printf("=== RUN: %s\n", eg.Name)
-	}
-
-	// Capture stdout.
-	stdout := os.Stdout
-	r, w, err := os.Pipe()
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-	os.Stdout = w
-	outC := make(chan string)
-	go func() {
-		buf := new(bytes.Buffer)
-		_, err := io.Copy(buf, r)
-		r.Close()
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "testing: copying pipe: %v\n", err)
-			os.Exit(1)
-		}
-		outC <- buf.String()
-	}()
-
-	start := time.Now()
-	ok = true
-
-	// Clean up in a deferred call so we can recover if the example panics.
-	defer func() {
-		dstr := fmtDuration(time.Now().Sub(start))
-
-		// Close pipe, restore stdout, get output.
-		w.Close()
-		os.Stdout = stdout
-		out := <-outC
-
-		var fail string
-		err := recover()
-		if g, e := strings.TrimSpace(out), strings.TrimSpace(eg.Output); g != e && err == nil {
-			fail = fmt.Sprintf("got:\n%s\nwant:\n%s\n", g, e)
-		}
-		if fail != "" || err != nil {
-			fmt.Printf("--- FAIL: %s (%s)\n%s", eg.Name, dstr, fail)
-			ok = false
-		} else if *chatty {
-			fmt.Printf("--- PASS: %s (%s)\n", eg.Name, dstr)
-		}
-		if err != nil {
-			panic(err)
-		}
-	}()
-
-	// Run example.
-	eg.F()
-	return
-}