libgo: update to Go 1.8 release candidate 1

    
    Compiler changes:
      * Change map assignment to use mapassign and assign value directly.
      * Change string iteration to use decoderune, faster for ASCII strings.
      * Change makeslice to take int, and use makeslice64 for larger values.
      * Add new noverflow field to hmap struct used for maps.
    
    Unresolved problems, to be fixed later:
      * Commented out test in go/types/sizes_test.go that doesn't compile.
      * Commented out reflect.TestStructOf test for padding after zero-sized field.
    
    Reviewed-on: https://go-review.googlesource.com/35231

gotools/:
	Updates for Go 1.8rc1.
	* Makefile.am (go_cmd_go_files): Add bug.go.
	(s-zdefaultcc): Write defaultPkgConfig.
	* Makefile.in: Rebuild.

From-SVN: r244456

1 files changed, 6 insertions, 3 deletions

diff --git a/libgo/go/compress/gzip/issue14937_test.go b/libgo/go/compress/gzip/issue14937_test.go
index 432ad16b1c2..e76d47cc4ee 100644
--- a/libgo/go/compress/gzip/issue14937_test.go
+++ b/libgo/go/compress/gzip/issue14937_test.go
@@ -7,7 +7,6 @@ import (
 	"runtime"
 	"strings"
 	"testing"
-	"time"
 )
 
 // Per golang.org/issue/14937, check that every .gz file
@@ -16,8 +15,12 @@ func TestGZIPFilesHaveZeroMTimes(t *testing.T) {
 	if testing.Short() && testenv.Builder() == "" {
 		t.Skip("skipping in short mode")
 	}
+	goroot, err := filepath.EvalSymlinks(runtime.GOROOT())
+	if err != nil {
+		t.Fatal("error evaluating GOROOT: ", err)
+	}
 	var files []string
-	err := filepath.Walk(runtime.GOROOT(), func(path string, info os.FileInfo, err error) error {
+	err = filepath.Walk(goroot, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
@@ -53,7 +56,7 @@ func checkZeroMTime(t *testing.T, path string) {
 		return
 	}
 	defer gz.Close()
-	if !gz.ModTime.Equal(time.Unix(0, 0)) {
+	if !gz.ModTime.IsZero() {
 		t.Errorf("gzip file %s has non-zero mtime (%s)", path, gz.ModTime)
 	}
 }