add test output and bless

Author: mj10021

tests/ui/lint/recursive_default_impl.rs

@@ -5,9 +5,18 @@ struct Foo{
 
 impl Default for Foo {
     fn default() -> Self {
+    //~^ ERROR: recursive default impl
+    //~| NOTE: will result in infinite recursion
+    //~| HELP: ..default() in the Default impl does not apply a default for each struct field
+    //~| NOTE: `#[deny(recursive_default_impl)]` on by default
         Self {
             ..Default::default()
-            //~^ ERROR: recursive default impl
+            //~^ NOTE: recursive call site
+
         }
     }
 }
+
+fn main() {
+    let _ = Foo::default();
+}

tests/ui/lint/recursive_default_impl.stderr

@@ -1,21 +1,14 @@
-error[E0601]: `main` function not found in crate `recursive_default_impl`
-  --> $DIR/recursive_default_impl.rs:12:2
-   |
-LL | }
-   |  ^ consider adding a `main` function to `$DIR/recursive_default_impl.rs`
-
 error: recursive default impl
-  --> $DIR/recursive_default_impl.rs:6:5
+  --> $DIR/recursive_default_impl.rs:7:5
    |
 LL |     fn default() -> Self {
    |     ^^^^^^^^^^^^^^^^^^^^ will result in infinite recursion
-LL |         Self {
+...
 LL |             ..Default::default()
    |               ------------------ recursive call site
    |
    = help: ..default() in the Default impl does not apply a default for each struct field
    = note: `#[deny(recursive_default_impl)]` on by default
 
-error: aborting due to 2 previous errors
+error: aborting due to 1 previous error
 
-For more information about this error, try `rustc --explain E0601`.