Sort declarations in parser.dart.

Change-Id: I000193878307686d52e5b02cd3e6cdaafed68959
Reviewed-on: https://dart-review.googlesource.com/c/94681
Auto-Submit: Paul Berry <[email protected]>
Commit-Queue: Dan Rubel <[email protected]>
Reviewed-by: Dan Rubel <[email protected]>

Author: stereotype441

pkg/analyzer/lib/src/generated/parser.dart

@@ -225,6 +225,14 @@ class Parser {
   @deprecated
   void set enableAssertInitializer(bool enable) {}
 
+  /// Enables or disables parsing of control flow collections.
+  void set enableControlFlowCollections(bool value) {
+    if (value) {
+      throw new UnimplementedError('control_flow_collections experiment'
+          ' not supported by analyzer parser');
+    }
+  }
+
   /// Enables or disables non-nullable by default.
   void set enableNonNullable(bool value) {
     if (value) {
@@ -257,14 +265,6 @@ class Parser {
     }
   }
 
-  /// Enables or disables parsing of control flow collections.
-  void set enableControlFlowCollections(bool value) {
-    if (value) {
-      throw new UnimplementedError('control_flow_collections experiment'
-          ' not supported by analyzer parser');
-    }
-  }
-
   /// Return `true` if the parser is to allow URI's in part-of directives.
   @deprecated
   bool get enableUriInPartOf => true;