Class com.google.common.collect.ImmutableBiMap

The superclass changed from com.google.common.collect.ImmutableMap to com.google.common.collect.ImmutableBiMapFauxverideShim.

Added Methods
(Collector<T, ?, ImmutableBiMap<K, V>>) toImmutableBiMap(Function<?, super, T, ?, extends, K>, Function<?, super, T, ?, extends, V>)	Returns a Collector that accumulates elements into an {@code ImmutableBiMap} whose keys and values are the result of applying the provided mapping functions to the input elements.