Unify status for xdescribe and xit

- Ensure *All's only execute if at least one child will run
- Specs will report a status of `excluded` instead of disabled

[finishes #153967580]
- #1418

Signed-off-by: Elenore Bastian <ebastian@pivotal.io>

src/core/Suite.js

@@ -90,14 +90,10 @@ getJasmineRequireObj().Suite = function(j$) {
     if (this.result.failedExpectations.length > 0) {
       return 'failed';
     } else {
-      return 'finished';
+      return 'passed';
     }
   };
 
-  Suite.prototype.isExecutable = function() {
-    return !this.markedPending;
-  };
-
   Suite.prototype.canBeReentered = function() {
     return this.beforeAllFns.length === 0 && this.afterAllFns.length === 0;
   };