use go 1.13 (#8088)

* use go 1.13

* use go 1.13 in gomod file

* Update Makefile

* update swagger deps

vendor/golang.org/x/tools/go/gcexportdata/main.go

@@ -1,99 +0,0 @@
-// Copyright 2017 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
-
-// The gcexportdata command is a diagnostic tool that displays the
-// contents of gc export data files.
-package main
-
-import (
-	"flag"
-	"fmt"
-	"go/token"
-	"go/types"
-	"log"
-	"os"
-
-	"golang.org/x/tools/go/gcexportdata"
-	"golang.org/x/tools/go/types/typeutil"
-)
-
-var packageFlag = flag.String("package", "", "alternative package to print")
-
-func main() {
-	log.SetPrefix("gcexportdata: ")
-	log.SetFlags(0)
-	flag.Usage = func() {
-		fmt.Fprintln(os.Stderr, "usage: gcexportdata [-package path] file.a")
-	}
-	flag.Parse()
-	if flag.NArg() != 1 {
-		flag.Usage()
-		os.Exit(2)
-	}
-	filename := flag.Args()[0]
-
-	f, err := os.Open(filename)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	r, err := gcexportdata.NewReader(f)
-	if err != nil {
-		log.Fatalf("%s: %s", filename, err)
-	}
-
-	// Decode the package.
-	const primary = "<primary>"
-	imports := make(map[string]*types.Package)
-	fset := token.NewFileSet()
-	pkg, err := gcexportdata.Read(r, fset, imports, primary)
-	if err != nil {
-		log.Fatalf("%s: %s", filename, err)
-	}
-
-	// Optionally select an indirectly mentioned package.
-	if *packageFlag != "" {
-		pkg = imports[*packageFlag]
-		if pkg == nil {
-			fmt.Fprintf(os.Stderr, "export data file %s does not mention %s; has:\n",
-				filename, *packageFlag)
-			for p := range imports {
-				if p != primary {
-					fmt.Fprintf(os.Stderr, "\t%s\n", p)
-				}
-			}
-			os.Exit(1)
-		}
-	}
-
-	// Print all package-level declarations, including non-exported ones.
-	fmt.Printf("package %s\n", pkg.Name())
-	for _, imp := range pkg.Imports() {
-		fmt.Printf("import %q\n", imp.Path())
-	}
-	qual := func(p *types.Package) string {
-		if pkg == p {
-			return ""
-		}
-		return p.Name()
-	}
-	scope := pkg.Scope()
-	for _, name := range scope.Names() {
-		obj := scope.Lookup(name)
-		fmt.Printf("%s: %s\n",
-			fset.Position(obj.Pos()),
-			types.ObjectString(obj, qual))
-
-		// For types, print each method.
-		if _, ok := obj.(*types.TypeName); ok {
-			for _, method := range typeutil.IntuitiveMethodSet(obj.Type(), nil) {
-				fmt.Printf("%s: %s\n",
-					fset.Position(method.Obj().Pos()),
-					types.SelectionString(method, qual))
-			}
-		}
-	}
-}

vendor/golang.org/x/tools/go/packages/golist.go

@@ -21,6 +21,7 @@ import (
 	"strings"
 	"sync"
 	"time"
+	"unicode"
 
 	"golang.org/x/tools/go/internal/packagesdriver"
 	"golang.org/x/tools/internal/gopathwalk"
@@ -889,8 +890,19 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) {
 		// and should be suppressed by go list -e.
 		//
 		// This condition is not perfect yet because the error message can include other error messages than runtime/cgo.
-		if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# runtime/cgo\n") {
-			return stdout, nil
+		isPkgPathRune := func(r rune) bool {
+			// From https://golang.org/ref/spec#Import_declarations:
+			//    Implementation restriction: A compiler may restrict ImportPaths to non-empty strings
+			//    using only characters belonging to Unicode's L, M, N, P, and S general categories
+			//    (the Graphic characters without spaces) and may also exclude the
+			//    characters !"#$%&'()*,:;<=>?[\]^`{|} and the Unicode replacement character U+FFFD.
+			return unicode.IsOneOf([]*unicode.RangeTable{unicode.L, unicode.M, unicode.N, unicode.P, unicode.S}, r) &&
+				strings.IndexRune("!\"#$%&'()*,:;<=>?[\\]^`{|}\uFFFD", r) == -1
+		}
+		if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# ") {
+			if strings.HasPrefix(strings.TrimLeftFunc(stderr.String()[len("# "):], isPkgPathRune), "\n") {
+				return stdout, nil
+			}
 		}
 
 		// This error only appears in stderr. See golang.org/cl/166398 for a fix in go list to show