Indexes are listed in ~/.cargo/sources.json and ~/.cargo/local-sources.json, the
former of which is stored in the rust source tree in src/cargo. Each entry in
either of these files is a source, which is a dictionary with (currently) a
single key, "url". The supplied url should point to a json list, each element of
which should be a dictionary with four keys: "name", "uuid", "url", and
"method". The name and uuid serve to identify the package; the method describes
how to fetch the package; the url describes where to fetch it from. Currently
supported methods are "git", "http", and "file".
Signed-off-by: NElly Jones <elly@leptoquark.net>

Issue #1227

And define a const to refer to it.

fix to #1315 + small additions to std::either and result

if the input is a statically allocated type_desc

(No one is actually reading it yet.)

Issue #1227

Something will still have to be done to the AST to make it possible to
say `x.foo::<int>()`, since currently field access never allows type
parameters.

Issue #1227

Move the name of the bundle to the front, allow type parameters (not
handled yet), and add a 'for' keyword:

    impl utils for int {
        fn str() -> str { int::str(self) }
        fn times(f: block()) { ... }
    }

A dot is only considered part of a number when not followed by a letter

Closes #1306

Issue #1227

Get rid of expr_self_call, introduces def_self. `self` is now,
syntactically, simply a variable. A method implicitly brings a `self`
binding into scope.

Issue #1227

Resolution is still dumb, and no self support yet.

No conflict resolution or polymorphism yet.

Issue #1227

Issue #1227

First patch for issue #1115. Not yet ready for re-exported modules which
are renamed when importing them.

Cargo: install-by-name and install-by-uuid

'cargo install rustcrypto' now works.