Move scanner into pkg/front_end/lib/src/scanner.

pkg/analyzer/test/generated/parser_test.dart

Index: pkg/analyzer/test/generated/parser_test.dart
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index a7638b834fe80685b9393c3cd54a39d05ea47e45..91097c6a83e39030a103a7d60dc6462a7222173d 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -2937,7 +2937,7 @@ class ParserTestCase extends EngineTestCase {
    * match those that are expected, or if the result would have been `null`.
    */
   CompilationUnit parseCompilationUnitWithOptions(String source,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST]) {
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     createParser(source);
     CompilationUnit unit = parser.parseCompilationUnit2();
     expect(unit, isNotNull);
@@ -2955,7 +2955,7 @@ class ParserTestCase extends EngineTestCase {
    *           not match those that are expected, or if the result would have been `null`
    */
   Expression parseExpression(String source,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST]) {
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     createParser(source);
     Expression expression = parser.parseExpression2();
     expectNotNullIfNoErrors(expression);
@@ -2979,7 +2979,7 @@ class ParserTestCase extends EngineTestCase {
    *           not match those that are expected, or if the result would have been `null`
    */
   static CompilationUnit parseCompilationUnit(String source,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST]) {
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     GatheringErrorListener listener = new GatheringErrorListener();
     Scanner scanner =
         new Scanner(null, new CharSequenceReader(source), listener);
@@ -3014,7 +3014,7 @@ class ParserTestCase extends EngineTestCase {
    * should be enabled.
    */
   static Statement parseStatement(String source,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST,
+      [List<ErrorCode> errorCodes = const <ErrorCode>[],
       bool enableLazyAssignmentOperators]) {
     GatheringErrorListener listener = new GatheringErrorListener();
     Scanner scanner =
@@ -3041,7 +3041,7 @@ class ParserTestCase extends EngineTestCase {
    *           are expected, or if the result would have been `null`
    */
   static List<Statement> parseStatements(String source, int expectedCount,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST]) {
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     GatheringErrorListener listener = new GatheringErrorListener();
     Scanner scanner =
         new Scanner(null, new CharSequenceReader(source), listener);
@@ -13472,7 +13472,7 @@ void''');
    *           not match those that are expected, or if the result would have been `null`
    */
   CompilationUnit _parseDirectives(String source,
-      [List<ErrorCode> errorCodes = ErrorCode.EMPTY_LIST]) {
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     createParser(source);
     CompilationUnit unit = parser.parseDirectives2();
     expect(unit, isNotNull);