Remove references to deprecated extern crate "foo" as bar syntax

This syntax was removed in b24a3b8 but references remained in the
grammar, the reference, rustdoc generation, and some auxiliary test
files that don't seem to have been used since 812637e.

src/doc/grammar.md

@@ -329,7 +329,7 @@ view_item : extern_crate_decl | use_decl ;
 
 ```antlr
 extern_crate_decl : "extern" "crate" crate_name
-crate_name: ident | ( string_lit as ident )
+crate_name: ident | ( ident "as" ident )
 ```
 
 ##### Use declarations

src/doc/reference.md

@@ -752,11 +752,10 @@ provided in the `extern_crate_decl`.
 The external crate is resolved to a specific `soname` at compile time, and a
 runtime linkage requirement to that `soname` is passed to the linker for
 loading at runtime. The `soname` is resolved at compile time by scanning the
-compiler's library path and matching the optional `crateid` provided as a
+compiler's library path and matching the optional `crateid` provided against
-string literal against the `crateid` attributes that were declared on the
+the `crateid` attributes that were declared on the external crate when it was
-external crate when it was compiled. If no `crateid` is provided, a default
+compiled. If no `crateid` is provided, a default `name` attribute is assumed,
-`name` attribute is assumed, equal to the `ident` given in the
+equal to the `ident` given in the `extern_crate_decl`.
-`extern_crate_decl`.
 
 Three examples of `extern crate` declarations:
 

src/librustdoc/html/render.rs

@@ -1643,7 +1643,7 @@ fn item_module(w: &mut fmt::Formatter, cx: &Context,
             clean::ExternCrateItem(ref name, ref src) => {
                 match *src {
                     Some(ref src) => {
-                        try!(write!(w, "<tr><td><code>{}extern crate \"{}\" as {};",
+                        try!(write!(w, "<tr><td><code>{}extern crate {} as {};",
                                     VisSpace(myitem.visibility),
                                     src,
                                     name))

src/test/auxiliary/crateresolve4a-1.rs

@@ -1,14 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![crate_name="crateresolve4a#0.1"]
-#![crate_type = "lib"]
-
-pub fn f() -> isize { 10 }

src/test/auxiliary/crateresolve4a-2.rs

@@ -1,14 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![crate_name="crateresolve4a#0.2"]
-#![crate_type = "lib"]
-
-pub fn g() -> isize { 20 }

src/test/auxiliary/crateresolve4b-1.rs

@@ -1,18 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// aux-build:crateresolve4a-1.rs
-// aux-build:crateresolve4a-2.rs
-#![crate_name="crateresolve4b#0.1"]
-#![crate_type = "lib"]
-
-extern crate "crateresolve4a#0.2" as crateresolve4a;
-
-pub fn f() -> isize { crateresolve4a::g() }

src/test/auxiliary/crateresolve4b-2.rs

@@ -1,18 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// aux-build:crateresolve4a-1.rs
-// aux-build:crateresolve4a-2.rs
-#![crate_name="crateresolve4b#0.2"]
-#![crate_type = "lib"]
-
-extern crate "crateresolve4a#0.1" as crateresolve4a;
-
-pub fn g() -> isize { crateresolve4a::f() }