Run the sorter to reduce code churn

pkg/analyzer/lib/src/dart/scanner/scanner.dart

Index: pkg/analyzer/lib/src/dart/scanner/scanner.dart
diff --git a/pkg/analyzer/lib/src/dart/scanner/scanner.dart b/pkg/analyzer/lib/src/dart/scanner/scanner.dart
index e2c0aa0113390437dabe8ab2dae032b1f5468a06..fba9b6321c3808347ae41cd25b5cb5401617043c 100644
--- a/pkg/analyzer/lib/src/dart/scanner/scanner.dart
+++ b/pkg/analyzer/lib/src/dart/scanner/scanner.dart
@@ -109,17 +109,27 @@ class _Scanner2 implements Scanner {
   }
 
   @override
-  void appendToken(Token token) {
+  bool get hasUnmatchedGroups {
     throw 'unsupported operation';
   }
 
   @override
-  int bigSwitch(int next) {
+  set preserveComments(bool preserveComments) {
+    this._preserveComments = preserveComments;
+  }
+
+  @override
+  Token get tail {
     throw 'unsupported operation';
   }
 
   @override
-  bool get hasUnmatchedGroups {
+  void appendToken(Token token) {
+    throw 'unsupported operation';
+  }
+
+  @override
+  int bigSwitch(int next) {
     throw 'unsupported operation';
   }
 
@@ -149,11 +159,6 @@ class _Scanner2 implements Scanner {
   }
 
   @override
-  Token get tail {
-    throw 'unsupported operation';
-  }
-
-  @override
   Token tokenize() {
     fasta.ScannerResult result = fasta.scanString(_contents,
         includeComments: _preserveComments,
@@ -185,9 +190,4 @@ class _Scanner2 implements Scanner {
     }
     return firstToken;
   }
-
-  @override
-  set preserveComments(bool preserveComments) {
-    this._preserveComments = preserveComments;
-  }
 }