Fix parse-fail tests that now mention async

Author: cramertj

src/test/parse-fail/issue-20711-2.rs

@@ -16,6 +16,6 @@ impl Foo {
     fn foo() {}
 
     #[stable(feature = "rust1", since = "1.0.0")]
-} //~ ERROR expected one of `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, or `unsafe`
+} //~ ERROR expected one of `async`, `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, or `unsafe`
 
 fn main() {}

src/test/parse-fail/issue-20711.rs

@@ -14,6 +14,6 @@ struct Foo;
 
 impl Foo {
     #[stable(feature = "rust1", since = "1.0.0")]
-} //~ ERROR expected one of `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, or `unsafe`
+} //~ ERROR expected one of `async`, `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, or `unsafe`
 
 fn main() {}

src/test/parse-fail/removed-syntax-static-fn.rs

@@ -15,4 +15,4 @@ struct S;
 impl S {
     static fn f() {}
 }
-//~^^ ERROR expected one of `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, `unsafe`
+//~^^ ERROR expected one of `async`, `const`, `crate`, `default`, `extern`, `fn`, `pub`, `type`, `unsafe`

src/test/parse-fail/trait-non-item-macros.rs

@@ -10,7 +10,7 @@
 
 macro_rules! bah {
     ($a:expr) => ($a)
-    //~^ ERROR expected one of `const`, `extern`, `fn`, `type`, or `unsafe`, found `2`
+    //~^ ERROR expected one of `async`, `const`, `extern`, `fn`, `type`, or `unsafe`, found `2`
 }
 
 trait bar {

src/test/parse-fail/trait-pub-assoc-const.rs

@@ -10,7 +10,7 @@
 
 trait Foo {
     pub const Foo: u32;
-    //~^ ERROR expected one of `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
+    //~^ ERROR expected one of `async`, `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
 }
 
 fn main() {}

src/test/parse-fail/trait-pub-assoc-ty.rs

@@ -10,7 +10,7 @@
 
 trait Foo {
     pub type Foo;
-    //~^ ERROR expected one of `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
+    //~^ ERROR expected one of `async`, `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
 }
 
 fn main() {}

src/test/parse-fail/trait-pub-method.rs

@@ -10,7 +10,7 @@
 
 trait Foo {
     pub fn foo();
-    //~^ ERROR expected one of `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
+    //~^ ERROR expected one of `async`, `const`, `extern`, `fn`, `type`, `unsafe`, or `}`, found `pub`
 }
 
 fn main() {}