fix($interpolate): $interpolateProvider.endSymbol() returns startSymbol

I also added missing tests.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ng/interpolate.js b/src/ng/interpolate.js
index e3ba357c..06f05ed2 100644
--- a/src/ng/interpolate.js
+++ b/src/ng/interpolate.js
@@ -45,7 +45,7 @@ function $InterpolateProvider() {
       endSymbol = value;
       return this;
     } else {
-      return startSymbol;
+      return endSymbol;
     }
   };