rollup merge of #23580: nikomatsakis/pattern-and-overflow

src/test/compile-fail/issue-18400.rs

@@ -33,7 +33,4 @@ fn main() {
 
     0.contains(bits);
     //~^ ERROR overflow
-    //~| ERROR overflow
-    //~| ERROR overflow
-    //~| ERROR mismatched types
 }

src/test/compile-fail/recursion_limit.rs

@@ -42,12 +42,5 @@ fn is_send<T:Send>() { }
 fn main() {
     is_send::<A>();
     //~^ ERROR overflow evaluating
-    //~^^ NOTE consider adding a `#![recursion_limit="20"]` attribute to your crate
-    //~^^^ NOTE required by `is_send`
-    //~^^^^ ERROR overflow evaluating
-    //~^^^^^ NOTE consider adding a `#![recursion_limit="20"]` attribute to your crate
-    //~^^^^^^ NOTE required by `is_send`
-    //~^^^^^^^ ERROR overflow evaluating
-    //~^^^^^^^^ NOTE consider adding a `#![recursion_limit="20"]` attribute to your crate
-    //~^^^^^^^^^ NOTE required by `is_send`
+    //~| NOTE consider adding a `#![recursion_limit="20"]` attribute to your crate
 }