Make more JS files beter match the coding standard.

test/mjsunit/debug-liveedit-diff.js

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --expose-debug-as debug
 // Get the Debug object exposed from the debug context global object.
 
-Debug = debug.Debug
+Debug = debug.Debug;
 
 function CheckCompareOneWay(s1, s2) {
   var diff_array = Debug.LiveEdit.TestApi.CompareStrings(s1, s2);
 
   var pos1 = 0;
   var pos2 = 0;
   print("Compare:");
   print("s1='" + s1 + "'");
   print("s2='" + s2 + "'");
   print("Diff:");
@@ skipping 62 matching lines @@
 CheckCompare(
     "yesterday\nall\nmy\ntroubles\nseemed\nso\nfar\naway",
     "yesterday\nall\nmy\ntroubles\nseemed\nso\nfar\naway\n"
 );
 
 CheckCompare(
     "yesterday\nall\nmy\ntroubles\nseemed\nso\nfar\naway",
     "yesterday\nall\nmy\ntroubles\nseemed\nso\n"
 );