Replace()

IImmutableList< T > System.Collections.Immutable.IImmutableList< T >.Replace	(	T	oldValue,
		T	newValue,
		IEqualityComparer< T >?	equalityComparer )

Implemented in System.Collections.Immutable.ImmutableArray< T >, and System.Collections.Immutable.ImmutableList< T >.