=begin pod

=TITLE role X::Syntax::Obsolete

    role X::Syntax::Obsolete does X::Syntax { }

Syntax error thrown when obsolete (mostly Perl 5) syntax is detected.

For example

    new Array;

dies with

    ===SORRY!===
    Unsupported use of C++ constructor syntax; in Perl 6 please use method call syntax 

=head1 Methods

=head2 old

    method old() returns Str:D

Returns a textual description of the obsolete syntax construct

=head2 replacement

    method replacement() returns Str:D

Describes what to use instead of the obsolete syntax.

=head2 when

    method when() returns Str:D

Returns a string describing the state of the language (usually
C<" in Perl 6">).

=end pod