[svn r131] Fixed #11 All associative array properties now work as they should. Fixed problems with some cases of array.length and array.ptr. Fixed some problems with array properties. Fixed 'in' contracts.

module bug1;
struct Foo { Foo opSub(ref Foo b) { return Foo(); } }
struct Bar { Foo whee; }
void test(ref Bar moo) { Foo nngh; auto plonk = nngh - moo.whee; }
void main() { Bar bar; test(bar); }