Commits on Jul 20, 2015

1. perf($compile): Lazily compile the transclude function …

   For transcluded directives, the transclude function can be lazily compiled
   most of the time since the contents will not be needed until the
   `transclude` function was actually invoked.  For example, the `transclude`
   function that is passed to `ng-if` or `ng-switch-when` does not need to be
   invoked until the condition that it's bound to has been matched.  For
   complex trees or switch statements, this can represent significant
   performance gains since compilation of branches is deferred, and that
   compilation may never actually happen if it isn't needed.
   
   There are two instances where compilation will not be lazy; when we scan
   ahead in the array of directives to be processed and find at least two of
   the following:
   
   * A directive that is transcluded and does not allow multiple transclusion
   * A directive that has templateUrl and replace: true
   * A directive that has a template and replace: true
   
   In both of those cases, we will need to continue eager compilation in
   order to generate the multiple transclusion exception at the correct time.

   

   dcherman committed Jul 20, 2015
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