RELNOTES: Mark goog.abstractMethod() as deprecated in favor of @abstract annotations.
RELNOTES: Mark goog.abstractMethod() as deprecated in favor of @abstract annotations.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=262645910

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