angular/angular.js — pull request #6064 by nawitus (2014-01-30 22:09:55+00:00)
Title: fix($compile): throw an exception when an attribute is unassigned

Documentation states that NON_ASSIGNABLE_MODEL_EXPRESSION exception should be thrown if
a two-way attribute doesn't exist. This commit adds a simple test and throws an error
if the property is missing. Note that the documentation should probably be updated
and a different exception should be thrown using minErr.

This commit refers to issue #6060