review comments

src/librustc_resolve/lifetimes.rs

@@ -2952,7 +2952,7 @@ fn add_missing_lifetime_specifiers_label(
                 if !introduce_suggestion.is_empty() {
                     introduce_suggestion.push((span, "&'lifetime ".to_string()));
                     err.multipart_suggestion(
-                        "consider introducing a named lifetime",
+                        "consider introducing a named lifetime parameter",
                         introduce_suggestion,
                         Applicability::MaybeIncorrect,
                     );
@@ -2963,7 +2963,7 @@ fn add_missing_lifetime_specifiers_label(
                 if !introduce_suggestion.is_empty() {
                     introduce_suggestion.push((span, "'lifetime".to_string()));
                     err.multipart_suggestion(
-                        "consider introducing a named lifetime",
+                        "consider introducing a named lifetime parameter",
                         introduce_suggestion,
                         Applicability::MaybeIncorrect,
                     );
@@ -2974,7 +2974,7 @@ fn add_missing_lifetime_specifiers_label(
                 if !introduce_suggestion.is_empty() {
                     introduce_suggestion.push((span, format!("{}<'lifetime>", snippet)));
                     err.multipart_suggestion(
-                        "consider introducing a named lifetime",
+                        "consider introducing a named lifetime parameter",
                         introduce_suggestion,
                         Applicability::MaybeIncorrect,
                     );

src/test/ui/error-codes/E0106.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     x: &bool,
    |        ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Foo<'lifetime> {
 LL |     x: &'lifetime bool,
@@ -16,7 +16,7 @@ error[E0106]: missing lifetime specifier
 LL |     B(&bool),
    |       ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | enum Bar<'lifetime> {
 LL |     A(u8),
@@ -29,7 +29,7 @@ error[E0106]: missing lifetime specifier
 LL | type MyStr = &str;
    |              ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | type MyStr<'lifetime> = &'lifetime str;
    |           ^^^^^^^^^^^   ^^^^^^^^^^
@@ -40,7 +40,7 @@ error[E0106]: missing lifetime specifier
 LL |     baz: Baz,
    |          ^^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Quux<'lifetime> {
 LL |     baz: Baz<'lifetime>,

src/test/ui/impl-header-lifetime-elision/assoc-type.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     type Output = &i32;
    |                   ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL |     type Output<'lifetime> = &'lifetime i32;
    |                ^^^^^^^^^^^   ^^^^^^^^^^
@@ -15,7 +15,7 @@ error[E0106]: missing lifetime specifier
 LL |     type Output = &'_ i32;
    |                    ^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL |     type Output<'lifetime> = &'lifetime i32;
    |                ^^^^^^^^^^^    ^^^^^^^^^

src/test/ui/in-band-lifetimes/issue-61124-anon-lifetime-in-struct-declaration.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL | struct Heartbreak(Betrayal);
    |                   ^^^^^^^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Heartbreak<'lifetime>(Betrayal<'lifetime>);
    |                  ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^

src/test/ui/issues/issue-19707.stderr

@@ -5,7 +5,7 @@ LL | type Foo = fn(&u8, &u8) -> &u8;
    |                            ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | type Foo<'lifetime> = fn(&u8, &u8) -> &'lifetime u8;
    |         ^^^^^^^^^^^                   ^^^^^^^^^^
@@ -17,7 +17,7 @@ LL | fn bar<F: Fn(&u8, &u8) -> &u8>(f: &F) {}
    |                           ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn bar<'lifetime, F: Fn(&u8, &u8) -> &'lifetime u8>(f: &F) {}
    |        ^^^^^^^^^^                    ^^^^^^^^^^

src/test/ui/issues/issue-26638.stderr

@@ -5,7 +5,7 @@ LL | fn parse_type(iter: Box<dyn Iterator<Item=&str>+'static>) -> &str { iter.ne
    |                                                              ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say which one of `iter`'s 2 lifetimes it is borrowed from
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn parse_type<'lifetime>(iter: Box<dyn Iterator<Item=&str>+'static>) -> &'lifetime str { iter.next() }
    |              ^^^^^^^^^^^                                                ^^^^^^^^^^

src/test/ui/issues/issue-30255.stderr

@@ -5,7 +5,7 @@ LL | fn f(a: &S, b: i32) -> &i32 {
    |                        ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say which one of `a`'s 2 lifetimes it is borrowed from
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn f<'lifetime>(a: &S, b: i32) -> &'lifetime i32 {
    |     ^^^^^^^^^^^                   ^^^^^^^^^^
@@ -17,7 +17,7 @@ LL | fn g(a: &S, b: bool, c: &i32) -> &i32 {
    |                                  ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from one of `a`'s 2 lifetimes or `c`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn g<'lifetime>(a: &S, b: bool, c: &i32) -> &'lifetime i32 {
    |     ^^^^^^^^^^^                             ^^^^^^^^^^
@@ -29,7 +29,7 @@ LL | fn h(a: &bool, b: bool, c: &S, d: &i32) -> &i32 {
    |                                            ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `a`, one of `c`'s 2 lifetimes, or `d`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn h<'lifetime>(a: &bool, b: bool, c: &S, d: &i32) -> &'lifetime i32 {
    |     ^^^^^^^^^^^                                       ^^^^^^^^^^

src/test/ui/lifetimes/lifetime-elision-return-type-requires-explicit-lifetime.stderr

@@ -13,7 +13,7 @@ LL | fn g(_x: &isize, _y: &isize) -> &isize {
    |                                 ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `_x` or `_y`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn g<'lifetime>(_x: &isize, _y: &isize) -> &'lifetime isize {
    |     ^^^^^^^^^^^                            ^^^^^^^^^^
@@ -25,7 +25,7 @@ LL | fn h(_x: &Foo) -> &isize {
    |                   ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say which one of `_x`'s 2 lifetimes it is borrowed from
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn h<'lifetime>(_x: &Foo) -> &'lifetime isize {
    |     ^^^^^^^^^^^              ^^^^^^^^^^

src/test/ui/lifetimes/lifetime-errors/ex1b-return-no-names-if-else.stderr

@@ -5,7 +5,7 @@ LL | fn foo(x: &i32, y: &i32) -> &i32 {
    |                             ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `x` or `y`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn foo<'lifetime>(x: &i32, y: &i32) -> &'lifetime i32 {
    |       ^^^^^^^^^^^                      ^^^^^^^^^^

src/test/ui/proc-macro/item-error.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     a: &u64
    |        ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct A<'lifetime> {
 LL |     a: &'lifetime u64

src/test/ui/regions/regions-in-enums-anon.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     Bar(&isize)
    |         ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | enum Foo<'lifetime> {
 LL |     Bar(&'lifetime isize)

src/test/ui/regions/regions-in-structs-anon.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     x: &isize
    |        ^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Foo<'lifetime> {
 LL |     x: &'lifetime isize

src/test/ui/unboxed-closures/unboxed-closure-sugar-lifetime-elision.stderr

@@ -5,7 +5,7 @@ LL |     let _: dyn Foo(&isize, &usize) -> &usize;
    |                                       ^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn main<'lifetime>() {
 LL |     eq::< dyn for<'a> Foo<(&'a isize,), Output=&'a isize>,

src/test/ui/underscore-lifetime/dyn-trait-underscore-in-struct.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     x: Box<dyn Debug + '_>,
    |                        ^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Foo<'lifetime> {
 LL |     x: Box<dyn Debug + 'lifetime>,

src/test/ui/underscore-lifetime/in-fn-return-illegal.stderr

@@ -5,7 +5,7 @@ LL | fn foo(x: &u32, y: &u32) -> &'_ u32 { loop { } }
    |                              ^^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `x` or `y`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn foo<'lifetime>(x: &u32, y: &u32) -> &'lifetime u32 { loop { } }
    |       ^^^^^^^^^^^                       ^^^^^^^^^

src/test/ui/underscore-lifetime/in-struct.stderr

@@ -4,7 +4,7 @@ error[E0106]: missing lifetime specifier
 LL |     x: &'_ u32,
    |         ^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | struct Foo<'lifetime> {
 LL |     x: &'lifetime u32,
@@ -16,7 +16,7 @@ error[E0106]: missing lifetime specifier
 LL |     Variant(&'_ u32),
    |              ^^ expected named lifetime parameter
    |
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | enum Bar<'lifetime> {
 LL |     Variant(&'lifetime u32),

src/test/ui/underscore-lifetime/underscore-lifetime-binders.stderr

@@ -31,7 +31,7 @@ LL | fn foo2(_: &'_ u8, y: &'_ u8) -> &'_ u8 { y }
    |                                   ^^ expected named lifetime parameter
    |
    = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or `y`
-help: consider introducing a named lifetime
+help: consider introducing a named lifetime parameter
    |
 LL | fn foo2<'lifetime>(_: &'_ u8, y: &'_ u8) -> &'lifetime u8 { y }
    |        ^^^^^^^^^^^                           ^^^^^^^^^