Make first and last getters.

pkg/dartdoc/lib/src/markdown/inline_parser.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// Maintains the internal state needed to parse inline span elements in
 /// markdown.
 class InlineParser {
   static List<InlineSyntax> get syntaxes {
     // Lazy initialize.
     if (_syntaxes == null) {
@@ skipping 97 matching lines @@
   }
 
   writeText() {
     writeTextRange(start, pos);
     start = pos;
   }
 
   writeTextRange(int start, int end) {
     if (end > start) {
       final text = source.substring(start, end);
-      final nodes = _stack.last().children;
+      final nodes = _stack.last.children;
 
       // If the previous node is text too, just append.
-      if ((nodes.length > 0) && (nodes.last() is Text)) {
-        final newNode = new Text('${nodes.last().text}$text');
+      if ((nodes.length > 0) && (nodes.last is Text)) {
+        final newNode = new Text('${nodes.last.text}$text');
         nodes[nodes.length - 1] = newNode;
       } else {
         nodes.add(new Text(text));
       }
     }
   }
 
   addNode(Node node) {
-    _stack.last().children.add(node);
+    _stack.last.children.add(node);
   }
 
   // TODO(rnystrom): Only need this because RegExp doesn't let you start
   // searching from a given offset.
   String get currentSource => source.substring(pos, source.length);
 
   bool get isDone => pos == source.length;
 
   void advanceBy(int length) {
     pos += length;
@@ skipping 257 matching lines @@
       parser.consume(endMatch[0].length);
     } else {
       // Didn't close correctly so revert to text.
       parser.start = startPos;
       parser.advanceBy(endMatch[0].length);
     }
 
     return null;
   }
 }