Remove struct_variant feature gate.

Closes rust-lang#18641

src/doc/reference.md

@@ -1339,7 +1339,6 @@ a = Cat;
 Enumeration constructors can have either named or unnamed fields:
 
 ```
-# #![feature(struct_variant)]
 # fn main() {
 enum Animal {
     Dog (String, f64),
@@ -2540,13 +2539,6 @@ The currently implemented features of the reference compiler are:
 * `struct_inherit` - Allows using struct inheritance, which is barely
                      implemented and will probably be removed. Don't use this.
 
-* `struct_variant` - Structural enum variants (those with named fields). It is
-                     currently unknown whether this style of enum variant is as
-                     fully supported as the tuple-forms, and it's not certain
-                     that this style of variant should remain in the language.
-                     For now this style of variant is hidden behind a feature
-                     flag.
-
 * `thread_local` - The usage of the `#[thread_local]` attribute is experimental
                    and should be seen as unstable. This attribute is used to
                    declare a `static` as being unique per-thread leveraging

src/etc/generate-deriving-span-tests.py

@@ -37,7 +37,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 {error_deriving}

src/librustc/lib.rs

@@ -29,7 +29,7 @@ This API is completely unstable and subject to change.
       html_root_url = "http://doc.rust-lang.org/nightly/")]
 
 #![feature(default_type_params, globs, if_let, import_shadowing, macro_rules, phase, quote)]
-#![feature(slicing_syntax, struct_variant, unsafe_destructor)]
+#![feature(slicing_syntax, unsafe_destructor)]
 #![feature(rustc_diagnostic_macros)]
 
 extern crate arena;

src/librustdoc/lib.rs

@@ -16,7 +16,7 @@
 #![crate_type = "rlib"]
 
 #![allow(unknown_features)]
-#![feature(globs, struct_variant, macro_rules, phase, slicing_syntax)]
+#![feature(globs, macro_rules, phase, slicing_syntax)]
 
 extern crate arena;
 extern crate getopts;

src/libsyntax/feature_gate.rs

@@ -37,7 +37,7 @@ use std::slice;
 static KNOWN_FEATURES: &'static [(&'static str, Status)] = &[
     ("globs", Active),
     ("macro_rules", Active),
-    ("struct_variant", Active),
+    ("struct_variant", Removed),
     ("once_fns", Active),
     ("asm", Active),
     ("managed_boxes", Removed),

src/libsyntax/lib.rs

@@ -25,7 +25,7 @@
 
 #![allow(unknown_features)]
 #![feature(macro_rules, globs, default_type_params, phase, slicing_syntax)]
-#![feature(quote, struct_variant, unsafe_destructor, import_shadowing)]
+#![feature(quote, unsafe_destructor, import_shadowing)]
 
 extern crate arena;
 extern crate fmt_macros;

src/test/auxiliary/issue-8044.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(struct_variant)]
-
 pub struct BTree<V> {
     pub node: TreeItem<V>,
 }

src/test/auxiliary/namespaced_enum_emulate_flat.rs

@@ -7,7 +7,7 @@
 // <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.
-#![feature(globs, struct_variant)]
+#![feature(globs)]
 
 pub use Foo::*;
 

src/test/auxiliary/namespaced_enums.rs

@@ -7,7 +7,6 @@
 // <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.
-#![feature(struct_variant)]
 
 pub enum Foo {
     A,

src/test/auxiliary/privacy-struct-variant.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(struct_variant)]
-
 pub enum Foo {
     Bar {
         baz: int

src/test/auxiliary/struct_variant_xc_aux.rs

@@ -11,8 +11,6 @@
 #![crate_name="struct_variant_xc_aux"]
 #![crate_type = "lib"]
 
-#![feature(struct_variant)]
-
 pub enum Enum {
     Variant(u8),
     StructVariant { pub arg: u8 }

src/test/compile-fail/deriving-primitive.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(struct_variant)]
-
 use std::num::FromPrimitive;
 use std::int;
 

src/test/compile-fail/deriving-span-Clone-enum-struct-variant.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Clone)]

src/test/compile-fail/deriving-span-Clone-enum.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Clone)]

src/test/compile-fail/deriving-span-Clone-struct.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 

src/test/compile-fail/deriving-span-Clone-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Clone)]

src/test/compile-fail/deriving-span-Default-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Default)]

src/test/compile-fail/deriving-span-Default-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Default)]

src/test/compile-fail/deriving-span-Hash-enum-struct-variant.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Hash)]

src/test/compile-fail/deriving-span-Hash-enum.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Hash)]

src/test/compile-fail/deriving-span-Hash-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Hash)]

src/test/compile-fail/deriving-span-Hash-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Hash)]

src/test/compile-fail/deriving-span-PartialEq-enum-struct-variant.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialEq-enum.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialEq-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialEq-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialOrd-enum-struct-variant.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialOrd-enum.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialOrd-struct.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-PartialOrd-tuple-struct.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 #[deriving(PartialEq)]

src/test/compile-fail/deriving-span-Rand-enum-struct-variant.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Rand)]

src/test/compile-fail/deriving-span-Rand-enum.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Rand)]

src/test/compile-fail/deriving-span-Rand-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Rand)]

src/test/compile-fail/deriving-span-Rand-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Rand)]

src/test/compile-fail/deriving-span-Show-enum-struct-variant.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Show)]

src/test/compile-fail/deriving-span-Show-enum.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Show)]

src/test/compile-fail/deriving-span-Show-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Show)]

src/test/compile-fail/deriving-span-Show-tuple-struct.rs

@@ -10,10 +10,8 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
-
 struct Error;
 
 #[deriving(Show)]

src/test/compile-fail/deriving-span-TotalEq-enum-struct-variant.rs

@@ -10,7 +10,6 @@
 
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
-#![feature(struct_variant)]
 extern crate rand;
 
 #[deriving(PartialEq)]