elided_named_lifetimes: bump to Warn & fix libs

compiler/rustc_lint_defs/src/builtin.rs

@@ -1867,7 +1867,7 @@ declare_lint! {
 declare_lint! {
     /// TODO
     pub ELIDED_NAMED_LIFETIMES,
-    Allow,
+    Warn,
     "TODO"
 }
 

library/alloc/src/string.rs

@@ -2313,7 +2313,7 @@ impl<'b> Pattern for &'b String {
     }
 
     #[inline]
-    fn strip_suffix_of<'a>(self, haystack: &'a str) -> Option<&str>
+    fn strip_suffix_of<'a>(self, haystack: &'a str) -> Option<&'a str>
     where
         Self::Searcher<'a>: core::str::pattern::ReverseSearcher<'a>,
     {

library/core/src/fmt/rt.rs

@@ -110,39 +110,39 @@ impl<'a> Argument<'a> {
     }
 
     #[inline(always)]
-    pub fn new_display<'b, T: Display>(x: &'b T) -> Argument<'_> {
+    pub fn new_display<'b, T: Display>(x: &'b T) -> Argument<'b> {
         Self::new(x, Display::fmt)
     }
     #[inline(always)]
-    pub fn new_debug<'b, T: Debug>(x: &'b T) -> Argument<'_> {
+    pub fn new_debug<'b, T: Debug>(x: &'b T) -> Argument<'b> {
         Self::new(x, Debug::fmt)
     }
     #[inline(always)]
-    pub fn new_octal<'b, T: Octal>(x: &'b T) -> Argument<'_> {
+    pub fn new_octal<'b, T: Octal>(x: &'b T) -> Argument<'b> {
         Self::new(x, Octal::fmt)
     }
     #[inline(always)]
-    pub fn new_lower_hex<'b, T: LowerHex>(x: &'b T) -> Argument<'_> {
+    pub fn new_lower_hex<'b, T: LowerHex>(x: &'b T) -> Argument<'b> {
         Self::new(x, LowerHex::fmt)
     }
     #[inline(always)]
-    pub fn new_upper_hex<'b, T: UpperHex>(x: &'b T) -> Argument<'_> {
+    pub fn new_upper_hex<'b, T: UpperHex>(x: &'b T) -> Argument<'b> {
         Self::new(x, UpperHex::fmt)
     }
     #[inline(always)]
-    pub fn new_pointer<'b, T: Pointer>(x: &'b T) -> Argument<'_> {
+    pub fn new_pointer<'b, T: Pointer>(x: &'b T) -> Argument<'b> {
         Self::new(x, Pointer::fmt)
     }
     #[inline(always)]
-    pub fn new_binary<'b, T: Binary>(x: &'b T) -> Argument<'_> {
+    pub fn new_binary<'b, T: Binary>(x: &'b T) -> Argument<'b> {
         Self::new(x, Binary::fmt)
     }
     #[inline(always)]
-    pub fn new_lower_exp<'b, T: LowerExp>(x: &'b T) -> Argument<'_> {
+    pub fn new_lower_exp<'b, T: LowerExp>(x: &'b T) -> Argument<'b> {
         Self::new(x, LowerExp::fmt)
     }
     #[inline(always)]
-    pub fn new_upper_exp<'b, T: UpperExp>(x: &'b T) -> Argument<'_> {
+    pub fn new_upper_exp<'b, T: UpperExp>(x: &'b T) -> Argument<'b> {
         Self::new(x, UpperExp::fmt)
     }
     #[inline(always)]