Rollup merge of rust-lang#59372 - euclio:rename-trim, r=rkruppe

add rustfix-able suggestions to trim_{left,right} deprecations

Fixes rust-lang#53802 (technically already fixed by rust-lang#58002, but that issue is about these methods).

src/libcore/str/mod.rs

@@ -3601,7 +3601,11 @@ impl str {
     /// assert!(Some('ע') == s.trim_left().chars().next());
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_deprecated(reason = "superseded by `trim_start`", since = "1.33.0")]
+    #[rustc_deprecated(
+        since = "1.33.0",
+        reason = "superseded by `trim_start`",
+        suggestion = "trim_start",
+    )]
     pub fn trim_left(&self) -> &str {
         self.trim_start()
     }
@@ -3638,7 +3642,11 @@ impl str {
     /// assert!(Some('ת') == s.trim_right().chars().rev().next());
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_deprecated(reason = "superseded by `trim_end`", since = "1.33.0")]
+    #[rustc_deprecated(
+        since = "1.33.0",
+        reason = "superseded by `trim_end`",
+        suggestion = "trim_end",
+    )]
     pub fn trim_right(&self) -> &str {
         self.trim_end()
     }
@@ -3802,7 +3810,11 @@ impl str {
     /// assert_eq!("12foo1bar12".trim_left_matches(x), "foo1bar12");
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_deprecated(reason = "superseded by `trim_start_matches`", since = "1.33.0")]
+    #[rustc_deprecated(
+        since = "1.33.0",
+        reason = "superseded by `trim_start_matches`",
+        suggestion = "trim_start_matches",
+    )]
     pub fn trim_left_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str {
         self.trim_start_matches(pat)
     }
@@ -3840,7 +3852,11 @@ impl str {
     /// assert_eq!("1fooX".trim_right_matches(|c| c == '1' || c == 'X'), "1foo");
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_deprecated(reason = "superseded by `trim_end_matches`", since = "1.33.0")]
+    #[rustc_deprecated(
+        since = "1.33.0",
+        reason = "superseded by `trim_end_matches`",
+        suggestion = "trim_end_matches",
+    )]
     pub fn trim_right_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str
         where P::Searcher: ReverseSearcher<'a>
     {