Changed @domName annotation in comment to full fledge @DomName annotation.

tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate

Index: tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate
diff --git a/tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate b/tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate
index ab440b0cac2e351761e0eb4ae4d2585aa0398018..dccd928ff722ac090c985632bf1c885fd851bb7b 100644
--- a/tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate
+++ b/tools/dom/templates/html/dart2js/impl_ArrayBuffer.darttemplate
@@ -4,10 +4,10 @@
 
 part of $LIBRARYNAME;
 
-/// @domName $DOMNAME$ANNOTATIONS
+$ANNOTATIONS
 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 $!MEMBERS
-  /// @domName ArrayBuffer.slice;
+  @DomName("ArrayBuffer.slice")
   ArrayBuffer slice(int begin, [int end]) {
     // IE10 supports ArrayBuffers but does not have the slice method.
     if (JS('bool', '!!#.slice', this)) {