anchor.diff:  /// of states in the DFA constructed from the Regex.
   [<RequireQualifiedAccess; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
   module Regex =
  +    /// The 'epsilon' pattern, which matches (accepts) an empty string.
  +    [<CompiledName("Epsilon")>]
  +    let epsilon : Regex =
  +        Epsilon
  +
  +    /// The regular expression which matches exactly one (1) instance of any character.
  +    [<CompiledName("Any")>]
  +    let any : Regex =
  +        Any
  +
       /// The regular expression which never matches (accepts) anything.
       [<CompiledName("Empty")>]
       let empty : Regex =
  
positive.code:             CharSet.isEmpty charSet
          | _ ->
              false
  
      /// The 'epsilon' pattern, which matches (accepts) an empty string.
      [<CompiledName("Epsilon")>]
      let epsilon : Regex =
          Epsilon
  
      /// Returns a new regular expression which matches exactly one (1) instance of the specified character.
      [<CompiledName("OfCharacter")>]
  
negative.code:     | Or of Regex * Regex
      /// Boolean AND of two regular expressions.
      | And of Regex * Regex
  
      /// Infrastructure. Only for use with DebuggerDisplayAttribute.
      [<DebuggerBrowsable(DebuggerBrowsableState.Never)>]
  