Follow up to r19538: Bump preparse data version number.

r19538 changes the preparse data format, so this is probably a good idea.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/179903002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19547 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/preparse-data-format.h

@@ -37,7 +37,7 @@ struct PreparseDataConstants {
  public:
   // Layout and constants of the preparse data exchange format.
   static const unsigned kMagicNumber = 0xBadDead;
-  static const unsigned kCurrentVersion = 7;
+  static const unsigned kCurrentVersion = 8;
 
   static const int kMagicOffset = 0;
   static const int kVersionOffset = 1;