Add HELP to test

Author: estebank

tests/ui/moves/recreating-value-in-loop-condition.rs

@@ -4,12 +4,14 @@ fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
 fn foo() {
     let vec = vec!["one", "two", "three"];
     while let Some(item) = iter(vec).next() { //~ ERROR use of moved value
+    //~^ HELP consider moving the expression out of the loop so it is only moved once
         println!("{:?}", item);
     }
 }
 fn bar() {
     let vec = vec!["one", "two", "three"];
     loop {
+    //~^ HELP consider moving the expression out of the loop so it is only moved once
         let Some(item) = iter(vec).next() else { //~ ERROR use of moved value
             break;
         };
@@ -19,7 +21,9 @@ fn bar() {
 fn baz() {
     let vec = vec!["one", "two", "three"];
     loop {
+    //~^ HELP consider moving the expression out of the loop so it is only moved once
         let item = iter(vec).next(); //~ ERROR use of moved value
+        //~^ HELP consider cloning
         if item.is_none() {
             break;
         }
@@ -29,6 +33,7 @@ fn baz() {
 fn qux() {
     let vec = vec!["one", "two", "three"];
     loop {
+    //~^ HELP consider moving the expression out of the loop so it is only moved once
         if let Some(item) = iter(vec).next() { //~ ERROR use of moved value
             println!("{:?}", item);
             break;
@@ -39,6 +44,7 @@ fn zap() {
     loop {
         let vec = vec!["one", "two", "three"];
         loop {
+        //~^ HELP consider moving the expression out of the loop so it is only moved once
             loop {
                 loop {
                     if let Some(item) = iter(vec).next() { //~ ERROR use of moved value

tests/ui/moves/recreating-value-in-loop-condition.stderr

@@ -23,12 +23,13 @@ LL ~     while let Some(item) = value.next() {
    |
 
 error[E0382]: use of moved value: `vec`
-  --> $DIR/recreating-value-in-loop-condition.rs:13:31
+  --> $DIR/recreating-value-in-loop-condition.rs:15:31
    |
 LL |     let vec = vec!["one", "two", "three"];
    |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
 LL |     loop {
    |     ---- inside of this loop
+LL |
 LL |         let Some(item) = iter(vec).next() else {
    |                               ^^^ value moved here, in previous iteration of loop
    |
@@ -43,16 +44,18 @@ help: consider moving the expression out of the loop so it is only moved once
    |
 LL ~     let mut value = iter(vec);
 LL ~     loop {
+LL |
 LL ~         let Some(item) = value.next() else {
    |
 
 error[E0382]: use of moved value: `vec`
-  --> $DIR/recreating-value-in-loop-condition.rs:22:25
+  --> $DIR/recreating-value-in-loop-condition.rs:25:25
    |
 LL |     let vec = vec!["one", "two", "three"];
    |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
 LL |     loop {
    |     ---- inside of this loop
+LL |
 LL |         let item = iter(vec).next();
    |                         ^^^ value moved here, in previous iteration of loop
    |
@@ -67,6 +70,7 @@ help: consider moving the expression out of the loop so it is only moved once
    |
 LL ~     let mut value = iter(vec);
 LL ~     loop {
+LL |
 LL ~         let item = value.next();
    |
 help: consider cloning the value if the performance cost is acceptable
@@ -75,12 +79,13 @@ LL |         let item = iter(vec.clone()).next();
    |                            ++++++++
 
 error[E0382]: use of moved value: `vec`
-  --> $DIR/recreating-value-in-loop-condition.rs:32:34
+  --> $DIR/recreating-value-in-loop-condition.rs:37:34
    |
 LL |     let vec = vec!["one", "two", "three"];
    |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
 LL |     loop {
    |     ---- inside of this loop
+LL |
 LL |         if let Some(item) = iter(vec).next() {
    |                                  ^^^ value moved here, in previous iteration of loop
    |
@@ -95,16 +100,18 @@ help: consider moving the expression out of the loop so it is only moved once
    |
 LL ~     let mut value = iter(vec);
 LL ~     loop {
+LL |
 LL ~         if let Some(item) = value.next() {
    |
 
 error[E0382]: use of moved value: `vec`
-  --> $DIR/recreating-value-in-loop-condition.rs:44:46
+  --> $DIR/recreating-value-in-loop-condition.rs:50:46
    |
 LL |         let vec = vec!["one", "two", "three"];
    |             --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
 LL |         loop {
    |         ---- inside of this loop
+LL |
 LL |             loop {
    |             ---- inside of this loop
 LL |                 loop {
@@ -120,24 +127,26 @@ LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
    |    |
    |    in this function
 note: verify that your loop breaking logic is correct
-  --> $DIR/recreating-value-in-loop-condition.rs:46:25
+  --> $DIR/recreating-value-in-loop-condition.rs:52:25
    |
 LL |     loop {
    |     ----
 LL |         let vec = vec!["one", "two", "three"];
 LL |         loop {
    |         ----
+LL |
 LL |             loop {
    |             ----
 LL |                 loop {
    |                 ----
 ...
 LL |                         break;
-   |                         ^^^^^ this `break` exits the loop at line 43
+   |                         ^^^^^ this `break` exits the loop at line 49
 help: consider moving the expression out of the loop so it is only moved once
    |
 LL ~         let mut value = iter(vec);
 LL ~         loop {
+LL |
 LL |             loop {
 LL |                 loop {
 LL ~                     if let Some(item) = value.next() {