Constructs a new {@link CommonTokenStream} using the specified token
source and filtering tokens to the specified channel. Only tokens whose
{@link Token#getChannel} matches {@code channel} or have the
{@link Token#getType} equal to {@link Token#EOF} will be returned by the
token stream lookahead methods.
@param tokenSource The token source.
@param channel The channel to use for filtering tokens.
Constructs a new {@link CommonTokenStream} using the specified token source and filtering tokens to the specified channel. Only tokens whose {@link Token#getChannel} matches {@code channel} or have the {@link Token#getType} equal to {@link Token#EOF} will be returned by the token stream lookahead methods.
@param tokenSource The token source. @param channel The channel to use for filtering tokens.