fix(ngMock window.inject): correct error stack trace update on all invocations

Failed injection functions should consistently include their respective
window.inject() call location information in their stack trace, even on
repeated invocations & when they have been passed as a non-initial
parameter to their window.inject() call.

Author: jurko-gospodnetic

src/ngMock/angular-mocks.js

@@ -2960,8 +2960,6 @@ angular.mock.$RootScopeDecorator = ['$delegate', function($delegate) {
             throw new ErrorAddingDeclarationLocationStack(e, errorForStack);
           }
           throw e;
-        } finally {
-          errorForStack = null;
         }
       }
     }