go/types: use testenv.MustHaveGoBuild to exclude some builds

Replace custom solution with new (internal) library call.

Change-Id: I53b26a1caf0684b9f5d8d749b10d9f3ba18a3001
Reviewed-on: https://go-review.googlesource.com/11193Reviewed-by: Damien Neil <dneil@google.com>

src/go/types/api_test.go

@@ -11,27 +11,13 @@ import (
 	"go/importer"
 	"go/parser"
 	"go/token"
-	"runtime"
+	"internal/testenv"
 	"strings"
 	"testing"
 
 	. "go/types"
 )
 
-// skipSpecialPlatforms causes the test to be skipped for platforms where
-// builders (build.golang.org) don't have access to compiled packages for
-// import.
-func skipSpecialPlatforms(t *testing.T) {
-	switch platform := runtime.GOOS + "-" + runtime.GOARCH; platform {
-	case "nacl-amd64p32",
-		"nacl-386",
-		"nacl-arm",
-		"darwin-arm",
-		"darwin-arm64":
-		t.Skipf("no compiled packages available for import on %s", platform)
-	}
-}
-
 func pkgFor(path, source string, info *Info) (*Package, error) {
 	fset := token.NewFileSet()
 	f, err := parser.ParseFile(fset, path, source, 0)
@@ -299,7 +285,7 @@ func predString(tv TypeAndValue) string {
 }
 
 func TestPredicatesInfo(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	var tests = []struct {
 		src  string
@@ -385,7 +371,7 @@ func TestPredicatesInfo(t *testing.T) {
 }
 
 func TestScopesInfo(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	var tests = []struct {
 		src    string

src/go/types/check_test.go

@@ -32,6 +32,7 @@ import (
 	"go/parser"
 	"go/scanner"
 	"go/token"
+	"internal/testenv"
 	"io/ioutil"
 	"regexp"
 	"strings"
@@ -279,7 +280,7 @@ func checkFiles(t *testing.T, testfiles []string) {
 }
 
 func TestCheck(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	// Declare builtins for testing.
 	DefPredeclaredTestFuncs()

src/go/types/eval_test.go

@@ -11,6 +11,7 @@ import (
 	"go/importer"
 	"go/parser"
 	"go/token"
+	"internal/testenv"
 	"strings"
 	"testing"
 
@@ -86,7 +87,7 @@ func TestEvalArith(t *testing.T) {
 }
 
 func TestEvalPos(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	// The contents of /*-style comments are of the form
 	//	expr => value, type

src/go/types/resolver_test.go

@@ -10,6 +10,7 @@ import (
 	"go/importer"
 	"go/parser"
 	"go/token"
+	"internal/testenv"
 	"sort"
 	"testing"
 
@@ -35,7 +36,7 @@ func (imp *resolveTestImporter) Import(path string) (*Package, error) {
 }
 
 func TestResolveIdents(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	sources := []string{
 		`

src/go/types/stdlib_test.go

@@ -15,6 +15,7 @@ import (
 	"go/parser"
 	"go/scanner"
 	"go/token"
+	"internal/testenv"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -36,7 +37,7 @@ var (
 )
 
 func TestStdlib(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	start = time.Now()
 	walkDirs(t, filepath.Join(runtime.GOROOT(), "src"))
@@ -124,7 +125,7 @@ func testTestDir(t *testing.T, path string, ignore ...string) {
 }
 
 func TestStdTest(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	// test/recover4.go is only built for Linux and Darwin.
 	// TODO(gri) Remove once tests consider +build tags (issue 10370).
@@ -139,7 +140,7 @@ func TestStdTest(t *testing.T) {
 }
 
 func TestStdFixed(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	testTestDir(t, filepath.Join(runtime.GOROOT(), "test", "fixedbugs"),
 		"bug248.go", "bug302.go", "bug369.go", // complex test instructions - ignore
@@ -151,7 +152,7 @@ func TestStdFixed(t *testing.T) {
 }
 
 func TestStdKen(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	testTestDir(t, filepath.Join(runtime.GOROOT(), "test", "ken"))
 }

src/go/types/typestring_test.go

@@ -9,6 +9,7 @@ import (
 	"go/importer"
 	"go/parser"
 	"go/token"
+	"internal/testenv"
 	"testing"
 
 	. "go/types"
@@ -117,7 +118,7 @@ var dependentTestTypes = []testEntry{
 }
 
 func TestTypeString(t *testing.T) {
-	skipSpecialPlatforms(t)
+	testenv.MustHaveGoBuild(t)
 
 	var tests []testEntry
 	tests = append(tests, independentTestTypes...)