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, 24 insertions, 0 deletions

diff --git a/libgo/go/index/suffixarray/example_test.go b/libgo/go/index/suffixarray/example_test.go
new file mode 100644
index 0000000..a23a580
--- /dev/null
+++ b/libgo/go/index/suffixarray/example_test.go
@@ -0,0 +1,24 @@
+// Copyright 2016 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.
+
+// +build ignore
+
+package suffixarray_test
+
+import (
+	"fmt"
+	"index/suffixarray"
+)
+
+func ExampleIndex_Lookup() {
+	index := suffixarray.New([]byte("banana"))
+	offsets := index.Lookup([]byte("ana"), -1)
+	for _, off := range offsets {
+		fmt.Println(off)
+	}
+
+	// Unordered output:
+	// 1
+	// 3
+}