Fixes type range issue during linting (#16684)

 - Ensures the propagated negation sign is properly utilized during type
   checking.
 - Removed redundant type checking, specifically regarding the out of bounds checking
   on a bounded type.
 - Closes #16684
Add ICE regression test for issue #16218.

This code used to produce an ICE on the definition of trait Bar
with the following message:

Type parameter out of range when substituting in region 'a (root
type=fn(Self) -> 'astr) (space=FnSpace, index=0)

Closes #16218.
Add regression test for issue #10766

This test verifies that casting from the same lifetime on a value
to the same lifetime on a trait succeeds. Closes #10766.
Relicense shootout-reverse-complement.rs to the shootout license.

Everyone agreed.  Fix #17065
Relicense shootout-nbody.rs to the shootout license

Everyone agreed. fix #17073
Flip arguments to `std::iter::iterate`.

Breaks `iterate(f, seed)`, use `iterate(seed, f)` instead.
The convention is to have the closure last.

Closes #17066.

[breaking-change]
Fix casts in constant expressions

Fixes #17074.
Allow Rust to be built with LLVM trunk (3.6).
rustdoc: Don't strip #-lines if notrust

Other languages may not want to have a leading #-line get stripped.
libnative/io: generic retry() for Unix 64 bit read/write().

Win32/WinSock APIs never call WSASetLastError() with WSAEINTR
unless a programmer specifically cancels the ongoing blocking call by
a deprecated WinSock1 API WSACancelBlockingCall().
So the errno check was simply removed and retry() became an id function
on Windows.
Note: Windows' equivalent of SIGINT is always handled in a separate thread:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms682541%28v=vs.85%29.aspx
"CTRL+C and CTRL+BREAK Signals"

Also, incidentally rename a type parameter and clean up some module imports.
Add ICE regression test with unboxed closures

This code used to produce the following ICE:

   error: internal compiler error: get_unique_type_id_of_type() -
   unexpected type: closure,
   ty_unboxed_closure(syntax::ast::DefId{krate: 0u32, node: 66u32},
   ReScope(63u32))

This is a regression test for issue #17021.
Relicense shootout-chameneos-redux.rs to the shootout license.

Everyone agreed. fix #17076
Update LLVM to fix a crash in the MergeFunc pass
librustc: Make sure lifetimes in `for` loop heads outlive the `for` loop
itself.

This breaks code like:

    for &x in my_vector.iter() {
        my_vector[2] = "wibble";
        ...
    }

Change this code to not invalidate iterators. For example:

    for i in range(0, my_vector.len()) {
        my_vector[2] = "wibble";
        ...
    }

The `for-loop-does-not-borrow-iterators` test for #8372 was incorrect
and has been removed.

Closes #16820.

[breaking-change]
librustc: Feature gate subslice matching in non-tail positions.

This breaks code that uses the `..xs` form anywhere but at the end of a
slice. For example:

    match foo {
        [ 1, ..xs, 2 ]
        [ ..xs, 1, 2 ]
    }

Add the `#![feature(advanced_slice_patterns)]` gate to reenable the
syntax.

RFC #54.

Closes #16951.

[breaking-change]
quote: Explicitly borrow the ExtCtxt

Fixes #16992.
Check traits for built-in bounds in impls
guide: Remove reference to uninitialized bindings

There isn't a good way to fit this in, so let's just not
mention it.

Fixes #16792.
librustc: Change the syntax of subslice matching to use postfix `..`
instead of prefix `..`.

This breaks code that looked like:

    match foo {
        [ first, ..middle, last ] => { ... }
    }

Change this code to:

    match foo {
        [ first, middle.., last ] => { ... }
    }

RFC #55.

Closes #16967.

[breaking-change]
Decoding json now defaults Option<_> to None.

Closes #12794