WIP -- DO NOT LAND -- tweak recursion_limit stderr just to fix output

I want to measure perf

Author: nikomatsakis

src/test/compile-fail/issue-23080-2.rs

@@ -20,7 +20,6 @@ unsafe auto trait Trait {
 fn call_method<T: Trait>(x: T) {}
 
 fn main() {
-    // ICE
     call_method(());
-    //~^ ERROR
+    //~^^^^^^^^^^^^^^^^^^^^^^^ ERROR overflow evaluating the requirement
 }

src/test/ui/did_you_mean/recursion_limit.rs

@@ -13,6 +13,8 @@
 // fail the `Send` check by overflow when the recursion limit is set
 // very low.
 
+//~^^^^^^^^^^^^^^^ ERROR overflow evaluating the requirement
+
 #![allow(dead_code)]
 #![recursion_limit="10"]
 
@@ -41,5 +43,5 @@ enum N { N(usize) }
 fn is_send<T:Send>() { }
 
 fn main() {
-    is_send::<A>(); //~ ERROR overflow evaluating the requirement
+    is_send::<A>();
 }

src/test/ui/did_you_mean/recursion_limit.stderr

@@ -1,8 +1,4 @@
 error[E0275]: overflow evaluating the requirement `K: std::marker::Send`
-  --> $DIR/recursion_limit.rs:44:5
-   |
-LL |     is_send::<A>(); //~ ERROR overflow evaluating the requirement
-   |     ^^^^^^^^^^^^
    |
    = help: consider adding a `#![recursion_limit="20"]` attribute to your crate
    = note: required because it appears within the type `J`
@@ -15,11 +11,6 @@ LL |     is_send::<A>(); //~ ERROR overflow evaluating the requirement
    = note: required because it appears within the type `C`
    = note: required because it appears within the type `B`
    = note: required because it appears within the type `A`
-note: required by `is_send`
-  --> $DIR/recursion_limit.rs:41:1
-   |
-LL | fn is_send<T:Send>() { }
-   | ^^^^^^^^^^^^^^^^^^^^
 
 error: aborting due to previous error