Add tests

Author: Nadrieril

tests/ui/pattern/never_patterns.rs

@@ -74,26 +74,3 @@ fn never_pattern_location(void: Void) {
         Some(&(_, !)),
     }
 }
-
-fn never_and_bindings() {
-    let x: Result<bool, &(u32, Void)> = Ok(false);
-
-    // FIXME(never_patterns): Never patterns in or-patterns don't need to share the same bindings.
-    match x {
-        Ok(_x) | Err(&!) => {}
-        //~^ ERROR: is not bound in all patterns
-    }
-    let (Ok(_x) | Err(&!)) = x;
-    //~^ ERROR: is not bound in all patterns
-
-    // FIXME(never_patterns): A never pattern mustn't have bindings.
-    match x {
-        Ok(_) => {}
-        Err(&(_b, !)),
-    }
-    match x {
-        Ok(_a) | Err(&(_b, !)) => {}
-        //~^ ERROR: is not bound in all patterns
-        //~| ERROR: is not bound in all patterns
-    }
-}

tests/ui/pattern/never_patterns.stderr

@@ -14,38 +14,6 @@ LL |     let (Ok(_x) | Err(&!)) = res.as_ref();
    |             |
    |             variable not in all patterns
 
-error[E0408]: variable `_x` is not bound in all patterns
-  --> $DIR/never_patterns.rs:83:18
-   |
-LL |         Ok(_x) | Err(&!) => {}
-   |            --    ^^^^^^^ pattern doesn't bind `_x`
-   |            |
-   |            variable not in all patterns
-
-error[E0408]: variable `_x` is not bound in all patterns
-  --> $DIR/never_patterns.rs:86:19
-   |
-LL |     let (Ok(_x) | Err(&!)) = x;
-   |             --    ^^^^^^^ pattern doesn't bind `_x`
-   |             |
-   |             variable not in all patterns
-
-error[E0408]: variable `_b` is not bound in all patterns
-  --> $DIR/never_patterns.rs:95:9
-   |
-LL |         Ok(_a) | Err(&(_b, !)) => {}
-   |         ^^^^^^         -- variable not in all patterns
-   |         |
-   |         pattern doesn't bind `_b`
-
-error[E0408]: variable `_a` is not bound in all patterns
-  --> $DIR/never_patterns.rs:95:18
-   |
-LL |         Ok(_a) | Err(&(_b, !)) => {}
-   |            --    ^^^^^^^^^^^^^ pattern doesn't bind `_a`
-   |            |
-   |            variable not in all patterns
-
-error: aborting due to 6 previous errors
+error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0408`.

tests/ui/rfcs/rfc-0000-never_patterns/bindings.rs

@@ -0,0 +1,28 @@
+#![feature(never_patterns)]
+#![allow(incomplete_features)]
+
+enum Void {}
+
+fn main() {
+    let x: Result<bool, &(u32, u32, Void)> = Ok(false);
+
+    // FIXME(never_patterns): Never patterns in or-patterns don't need to share the same bindings.
+    match x {
+        Ok(_x) | Err(&!) => {}
+        //~^ ERROR: is not bound in all patterns
+    }
+    let (Ok(_x) | Err(&!)) = x;
+    //~^ ERROR: is not bound in all patterns
+
+    // FIXME(never_patterns): A never pattern mustn't have bindings.
+    match x {
+        Ok(_) => {}
+        Err(&(_a, _b, !)),
+    }
+    match x {
+        Ok(_ok) | Err(&(_a, _b, !)) => {}
+        //~^ ERROR: is not bound in all patterns
+        //~| ERROR: is not bound in all patterns
+        //~| ERROR: is not bound in all patterns
+    }
+}

tests/ui/rfcs/rfc-0000-never_patterns/bindings.stderr

@@ -0,0 +1,43 @@
+error[E0408]: variable `_x` is not bound in all patterns
+  --> $DIR/bindings.rs:11:18
+   |
+LL |         Ok(_x) | Err(&!) => {}
+   |            --    ^^^^^^^ pattern doesn't bind `_x`
+   |            |
+   |            variable not in all patterns
+
+error[E0408]: variable `_x` is not bound in all patterns
+  --> $DIR/bindings.rs:14:19
+   |
+LL |     let (Ok(_x) | Err(&!)) = x;
+   |             --    ^^^^^^^ pattern doesn't bind `_x`
+   |             |
+   |             variable not in all patterns
+
+error[E0408]: variable `_a` is not bound in all patterns
+  --> $DIR/bindings.rs:23:9
+   |
+LL |         Ok(_ok) | Err(&(_a, _b, !)) => {}
+   |         ^^^^^^^         -- variable not in all patterns
+   |         |
+   |         pattern doesn't bind `_a`
+
+error[E0408]: variable `_b` is not bound in all patterns
+  --> $DIR/bindings.rs:23:9
+   |
+LL |         Ok(_ok) | Err(&(_a, _b, !)) => {}
+   |         ^^^^^^^             -- variable not in all patterns
+   |         |
+   |         pattern doesn't bind `_b`
+
+error[E0408]: variable `_ok` is not bound in all patterns
+  --> $DIR/bindings.rs:23:19
+   |
+LL |         Ok(_ok) | Err(&(_a, _b, !)) => {}
+   |            ---    ^^^^^^^^^^^^^^^^^ pattern doesn't bind `_ok`
+   |            |
+   |            variable not in all patterns
+
+error: aborting due to 5 previous errors
+
+For more information about this error, try `rustc --explain E0408`.