Big merge from experimental to bleeding edge.

sdk/lib/_internal/dartdoc/lib/src/markdown/block_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.
 
 part of markdown;
 
 /// The line contains only whitespace or is empty.
 final _RE_EMPTY = new RegExp(r'^([ \t]*)$');
 
 /// A series of `=` or `-` (on the next line) define setext-style headers.
@@ skipping 117 matching lines @@
       childLines.add(match[1]);
       parser.advance();
     }
 
     return childLines;
   }
 
   /// Gets whether or not [parser]'s current line should end the previous block.
   static bool isAtBlockEnd(BlockParser parser) {
     if (parser.isDone) return true;
-    return syntaxes.some((s) => s.canParse(parser) && s.canEndBlock);
+    return syntaxes.any((s) => s.canParse(parser) && s.canEndBlock);
   }
 }
 
 class EmptyBlockSyntax extends BlockSyntax {
   RegExp get pattern => _RE_EMPTY;
 
   Node parse(BlockParser parser) {
     parser.advance();
 
     // Don't actually emit anything.
@@ skipping 306 matching lines @@
     while (!BlockSyntax.isAtBlockEnd(parser)) {
       childLines.add(parser.current);
       parser.advance();
     }
 
     final contents = parser.document.parseInline(
         Strings.join(childLines, '\n'));
     return new Element('p', contents);
   }
 }