Two small changes: `Not` was missing from the list of core traits and `assert` was removed from the language.

This makes `#[deriving_clone]` useful.

I wasn't sure if a macro was the right way to do this, but it seems more maintainable than a series of repetitive `impl`s.

Closes #2827

Closes #2827

r?

`log` can  polymorphically log anything, but debug!, etc. requires a format string. With this patch you can equivalently write `debug!(foo)` or `debug!("%?", foo)`.

I'm doing this because I was trying to remove `log` (replacing it with nothing, at least temporarily), but there are a number of logging statements that just want to print an arbitrary value and don't care about the format string.

I'm not entirely convinced this is a good change, since it overloads the implementation of these macros and makes their usage slightly more nuanced.

I missed this when I replaced iter-trait with a `BaseIter` impl.

Closes #4985 by removing the `dvec` module and all use cases throughout the compiler.

A number of uses were directly convertible to `let mut foo = ~[];`, while others in hash maps and some fields had to be converted to `@mut ~[T]`. A small number of `DVec` instances in fields were able to be converted directly to `~[T]` without the `@`, but this was a difficult thing to do.

r? @brson

This fixes a problem on compiling test suits for android target.

Patch for libuv android
r? @brson

The one thing `log` can still do is polymorphically log anything,
but debug!, etc. require a format string. With this patch
you can equivalently write `debug!(foo)` or `debug!("%?", foo)`

Replace the custom eq with #[deriving_eq].