Avoid dispatch in ERB initialization guard#124
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The guard for methods that eval ERB source compared @_init with self.class.singleton_class by calling equal? on @_init. A marshal-loaded object can control @_init, so make the comparison through BasicObject#equal? directly instead of dispatching to the restored object. This keeps normal ERB instances working while preserving the ArgumentError for marshal-loaded instances.
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The guard for methods that eval ERB source compared @_init with self.class.singleton_class by calling equal? on @_init. A marshal-loaded object can control @_init, so make the comparison through BasicObject#equal? directly instead of dispatching to the restored object.
This keeps normal ERB instances working while preserving the ArgumentError for marshal-loaded instances.