Ensure that attributes are spelled properly.

Author: ahmedcharles

src/doc/book/variable-bindings.md

@@ -125,7 +125,7 @@ warning, but it will still print "Hello, world!":
 
 ```text
    Compiling hello_world v0.0.1 (file:///home/you/projects/hello_world)
-src/main.rs:2:9: 2:10 warning: unused variable: `x`, #[warn(unused_variable)]
+src/main.rs:2:9: 2:10 warning: unused variable: `x`, #[warn(unused_variables)]
    on by default
 src/main.rs:2     let x: i32;
                       ^

src/test/run-pass-fulldeps/quote-unused-sp-no-warning.rs

@@ -12,7 +12,7 @@
 // ignore-pretty: does not work well with `--test`
 
 #![feature(quote, rustc_private)]
-#![deny(unused_variable)]
+#![deny(unused_variables)]
 
 extern crate syntax;
 

src/test/run-pass/enum-variants.rs

@@ -11,7 +11,7 @@
 // pretty-expanded FIXME #23616
 
 #![allow(dead_assignment)]
-#![allow(unused_variable)]
+#![allow(unused_variables)]
 
 enum Animal {
     Dog (String, f64),

src/test/run-pass/fn-type-infer.rs

@@ -10,7 +10,7 @@
 
 // pretty-expanded FIXME #23616
 
-#![allow(unused_variable)]
+#![allow(unused_variables)]
 
 pub fn main() {
     // We should be able to type infer inside of ||s.

src/test/run-pass/generic-tag.rs

@@ -11,7 +11,7 @@
 // pretty-expanded FIXME #23616
 
 #![allow(dead_assignment)]
-#![allow(unused_variable)]
+#![allow(unused_variables)]
 #![allow(unknown_features)]
 #![feature(box_syntax)]
 

src/test/run-pass/issue-12660.rs

@@ -16,7 +16,7 @@ extern crate issue12660aux;
 
 use issue12660aux::{my_fn, MyStruct};
 
-#[allow(path_statement)]
+#[allow(path_statements)]
 fn main() {
     my_fn(MyStruct);
     MyStruct;

src/test/run-pass/issue-1451.rs

@@ -10,7 +10,7 @@
 
 // pretty-expanded FIXME #23616
 
-#![allow(unused_variable)]
+#![allow(unused_variables)]
 
 struct T { f: extern "Rust" fn() }
 struct S { f: extern "Rust" fn() }

src/test/run-pass/issue-3878.rs

@@ -10,7 +10,7 @@
 
 // pretty-expanded FIXME #23616
 
-#![allow(path_statement)]
+#![allow(path_statements)]
 #![allow(unknown_features)]
 #![feature(box_syntax)]
 

src/test/run-pass/issue-4734.rs

@@ -12,7 +12,7 @@
 // `e` is a type which requires a destructor.
 
 
-#![allow(path_statement)]
+#![allow(path_statements)]
 
 struct A { n: isize }
 struct B;

src/test/run-pass/issue-7911.rs

@@ -13,7 +13,7 @@
 // (Closes #7911) Test that we can use the same self expression
 // with different mutability in macro in two methods
 
-#![allow(unused_variable)] // unused foobar_immut + foobar_mut
+#![allow(unused_variables)] // unused foobar_immut + foobar_mut
 trait FooBar {
     fn dummy(&self) { }
 }