Improve deprecation message to be more specific about which Closure assertion function to use instead of goog.asserts.assertElement. RELNOTES: n/a
Improve deprecation message to be more specific about which Closure assertion function to use instead of goog.asserts.assertElement.
RELNOTES: n/a

PiperOrigin-RevId: 450521736
Change-Id: I9169e069a546b2818c83050632f47fa054d87f86

google/closure-library,google/closure-library,google/closure-library,google/closure-library,google/closure-library