#52413: addressed @estebank's Nit

Author: PramodBisht

src/librustc/infer/error_reporting/nice_region_error/named_anon_conflict.rs

@@ -113,7 +113,7 @@ impl<'a, 'gcx, 'tcx> NiceRegionError<'a, 'gcx, 'tcx> {
             error_var
         ).span_suggestion(
             new_ty_span,
-            &format!("consider changing {} to ", span_label_var),
+            &format!("add explicit lifetime `{}` to {}", named, span_label_var),
             new_ty.to_string()
         )
             .span_label(span, format!("lifetime `{}` required", named))

src/test/ui/in-band-lifetimes/mismatched.nll.stderr

@@ -16,7 +16,7 @@ error[E0621]: explicit lifetime required in the type of `y`
 LL | fn foo(x: &'a u32, y: &u32) -> &'a u32 { y } //~ ERROR explicit lifetime required
    |                       ----               ^ lifetime `'a` required
    |                       |
-   |                       help: consider changing the type of `y` to : `&'a u32`
+   |                       help: add explicit lifetime `'a` to the type of `y`: `&'a u32`
 
 error[E0623]: lifetime mismatch
   --> $DIR/mismatched.rs:16:46

src/test/ui/in-band-lifetimes/mismatched.stderr

@@ -4,7 +4,7 @@ error[E0621]: explicit lifetime required in the type of `y`
 LL | fn foo(x: &'a u32, y: &u32) -> &'a u32 { y } //~ ERROR explicit lifetime required
    |                       ----               ^ lifetime `'a` required
    |                       |
-   |                       help: consider changing the type of `y` to : `&'a u32`
+   |                       help: add explicit lifetime `'a` to the type of `y`: `&'a u32`
 
 error[E0623]: lifetime mismatch
   --> $DIR/mismatched.rs:16:46

src/test/ui/in-band-lifetimes/mismatched_trait.nll.stderr

@@ -8,7 +8,7 @@ error[E0621]: explicit lifetime required in the type of `y`
   --> $DIR/mismatched_trait.rs:16:9
    |
 LL |     fn baz(&self, x: &'a u32, y: &u32) -> &'a u32 {
-   |                                  ---- help: consider changing the type of `y` to : `&'a u32`
+   |                                  ---- help: add explicit lifetime `'a` to the type of `y`: `&'a u32`
 LL |         y //~ ERROR explicit lifetime required
    |         ^ lifetime `'a` required
 

src/test/ui/in-band-lifetimes/mismatched_trait.stderr

@@ -2,7 +2,7 @@ error[E0621]: explicit lifetime required in the type of `y`
   --> $DIR/mismatched_trait.rs:16:9
    |
 LL |     fn baz(&self, x: &'a u32, y: &u32) -> &'a u32 {
-   |                                  ---- help: consider changing the type of `y` to : `&'a u32`
+   |                                  ---- help: add explicit lifetime `'a` to the type of `y`: `&'a u32`
 LL |         y //~ ERROR explicit lifetime required
    |         ^ lifetime `'a` required
 

src/test/ui/issue-13058.stderr

@@ -2,7 +2,7 @@ error[E0621]: explicit lifetime required in the type of `cont`
   --> $DIR/issue-13058.rs:24:26
    |
 LL | fn check<'r, I: Iterator<Item=usize>, T: Itble<'r, usize, I>>(cont: &T) -> bool
-   |                                                                     -- help: consider changing the type of `cont` to : `&'r T`
+   |                                                                     -- help: add explicit lifetime `'r` to the type of `cont`: `&'r T`
 LL | {
 LL |     let cont_iter = cont.iter();
    |                          ^^^^ lifetime `'r` required

src/test/ui/issue-14285.nll.stderr

@@ -8,7 +8,7 @@ error[E0621]: explicit lifetime required in the type of `a`
   --> $DIR/issue-14285.rs:22:7
    |
 LL | fn foo<'a>(a: &Foo) -> B<'a> {
-   |               ---- help: consider changing the type of `a` to : `&'a (dyn Foo + 'a)`
+   |               ---- help: add explicit lifetime `'a` to the type of `a`: `&'a (dyn Foo + 'a)`
 LL |     B(a)    //~ ERROR 22:5: 22:9: explicit lifetime required in the type of `a` [E0621]
    |       ^ lifetime `'a` required
 

src/test/ui/issue-14285.stderr

@@ -2,7 +2,7 @@ error[E0621]: explicit lifetime required in the type of `a`
   --> $DIR/issue-14285.rs:22:5
    |
 LL | fn foo<'a>(a: &Foo) -> B<'a> {
-   |               ---- help: consider changing the type of `a` to : `&'a (dyn Foo + 'a)`
+   |               ---- help: add explicit lifetime `'a` to the type of `a`: `&'a (dyn Foo + 'a)`
 LL |     B(a)    //~ ERROR 22:5: 22:9: explicit lifetime required in the type of `a` [E0621]
    |     ^^^^ lifetime `'a` required
 

src/test/ui/issue-15034.nll.stderr

@@ -8,7 +8,7 @@ error[E0621]: explicit lifetime required in the type of `lexer`
   --> $DIR/issue-15034.rs:27:25
    |
 LL |     pub fn new(lexer: &'a mut Lexer) -> Parser<'a> {
-   |                       ------------- help: consider changing the type of `lexer` to : `&'a mut Lexer<'a>`
+   |                       ------------- help: add explicit lifetime `'a` to the type of `lexer`: `&'a mut Lexer<'a>`
 LL |         Parser { lexer: lexer }
    |                         ^^^^^ lifetime `'a` required
 

src/test/ui/issue-15034.stderr

@@ -2,7 +2,7 @@ error[E0621]: explicit lifetime required in the type of `lexer`
   --> $DIR/issue-15034.rs:27:25
    |
 LL |     pub fn new(lexer: &'a mut Lexer) -> Parser<'a> {
-   |                       ------------- help: consider changing the type of `lexer` to : `&'a mut Lexer<'a>`
+   |                       ------------- help: add explicit lifetime `'a` to the type of `lexer`: `&'a mut Lexer<'a>`
 LL |         Parser { lexer: lexer }
    |                         ^^^^^ lifetime `'a` required