#62 Think about constructor syntax

[Andrei Kapustin]

It may be nice to combine allocation and initialization syntaxes, so that "declare p : ^Point = new Point(1,2)" is an equivalent of "declare p : ^Point = new Point; p^ = Point(1, 2);"

[Andrei Kapustin]

If in "declare p : ^Point = new Point(1,2)" the "declare p : ^Point = new Point;" part returns "null", the "p^ = Point(1, 2);" part must not be executed,