style: cleanup

Author: vicb

lib/core_dom/view_factory.dart

@@ -248,7 +248,7 @@ class _AnchorAttrs extends NodeAttrs {
 
   _AnchorAttrs(DirectiveRef this._directiveRef): super(null);
 
-  DirectiveRef operator [](name) => name == '.' ? _directiveRef.value : null;
+  String operator [](name) => name == '.' ? _directiveRef.value : null;
 
   void observe(String attributeName, _AttributeChanged notifyFn) {
     notifyFn(attributeName == '.' ? _directiveRef.value : null);

lib/directive/input_select.dart

@@ -105,9 +105,7 @@ class OptionValue implements NgAttachAware,
   }
 
   attach() {
-    if (_inputSelectDirective != null) {
-      _inputSelectDirective.dirty();
-    }
+    if (_inputSelectDirective != null) _inputSelectDirective.dirty();
   }
 
   detach() {
@@ -151,8 +149,8 @@ class _SingleSelectMode extends _SelectMode {
                     dom.SelectElement select,
                     NgModel model,
                     this._nullOption,
-                    this._unknownOption
-                    ): super(expando, select, model) {
+                    this._unknownOption)
+      : super(expando, select, model) {
   }
 
   onViewChange(event) {

lib/directive/ng_bind_html.dart

@@ -28,6 +28,6 @@ class NgBindHtml {
    * expression is innerHTML'd according to the rules specified in this class'
    * documentation.
    */
-  set value(value) => element.setInnerHtml(value == null ? '' : value.toString(),
-                                           validator: validator);
+  void set value(value) => element.setInnerHtml(
+      value == null ? '' : value.toString(), validator: validator);
 }

lib/directive/ng_repeat.dart

@@ -165,6 +165,7 @@ class NgRepeat {
       _viewPort.insert(view, insertAfter: previousView);
     };
 
+    // todo(vicb) refactor once GH-774 gets fixed
     if (_rows == null) {
       _rows = new List<_Row>(length);
       for (var i = 0; i < length; i++) {