apply case_lossless to Clippy source

Author: lapla-cogito

clippy_lints/src/booleans.rs

@@ -345,7 +345,7 @@ impl SuggestContext<'_, '_, '_> {
                     self.output.push(')');
                 },
                 Term(n) => {
-                    let terminal = self.terminals[n as usize];
+                    let terminal = self.terminals[usize::from(n)];
                     if let Some(str) = simplify_not(self.cx, self.msrv, terminal) {
                         self.output.push_str(&str);
                     } else {
@@ -387,7 +387,7 @@ impl SuggestContext<'_, '_, '_> {
             },
             &Term(n) => {
                 self.output.push_str(
-                    &self.terminals[n as usize]
+                    &self.terminals[usize::from(n)]
                         .span
                         .source_callsite()
                         .get_source_text(self.cx)?,
@@ -528,7 +528,7 @@ fn terminal_stats(b: &Bool) -> Stats {
                     recurse(inner, stats);
                 }
             },
-            &Term(n) => stats.terminals[n as usize] += 1,
+            &Term(n) => stats.terminals[usize::from(n)] += 1,
         }
     }
     use quine_mc_cluskey::Bool::{And, False, Not, Or, Term, True};

clippy_lints/src/literal_string_with_formatting_args.rs

@@ -90,7 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for LiteralStringWithFormattingArg {
                 LitKind::Str(symbol, style) => {
                     let add = match style {
                         StrStyle::Cooked => 1,
-                        StrStyle::Raw(nb) => nb as usize + 2,
+                        StrStyle::Raw(nb) => usize::from(nb) + 2,
                     };
                     (add, symbol)
                 },

clippy_lints/src/regex.rs

@@ -197,7 +197,7 @@ fn lint_syntax_error(cx: &LateContext<'_>, error: &regex_syntax::Error, unescape
 
     if let Some((primary, auxiliary, kind)) = parts
         && let Some(literal_snippet) = base.get_source_text(cx)
-        && let Some(inner) = literal_snippet.get(offset as usize..)
+        && let Some(inner) = literal_snippet.get(usize::from(offset)..)
         // Only convert to native rustc spans if the parsed regex matches the
         // source snippet exactly, to ensure the span offsets are correct
         && inner.get(..unescaped.len()) == Some(unescaped)

clippy_lints/src/unicode.rs

@@ -87,7 +87,7 @@ impl LateLintPass<'_> for Unicode {
 fn escape<T: Iterator<Item = char>>(s: T) -> String {
     let mut result = String::new();
     for c in s {
-        if c as u32 > 0x7F {
+        if u32::from(c) > 0x7F {
             for d in c.escape_unicode() {
                 result.push(d);
             }
@@ -119,7 +119,7 @@ fn check_str(cx: &LateContext<'_>, span: Span, id: HirId) {
         });
     }
 
-    if string.chars().any(|c| c as u32 > 0x7F) {
+    if string.chars().any(|c| u32::from(c) > 0x7F) {
         #[expect(clippy::collapsible_span_lint_calls, reason = "rust-clippy#7797")]
         span_lint_and_then(
             cx,

clippy_utils/src/source.rs

@@ -713,7 +713,7 @@ pub fn str_literal_to_char_literal(
     {
         let snip = snippet_with_applicability(sess, expr.span, string, applicability);
         let ch = if let StrStyle::Raw(nhash) = style {
-            let nhash = nhash as usize;
+            let nhash = usize::from(nhash);
             // for raw string: r##"a"##
             &snip[(nhash + 2)..(snip.len() - 1 - nhash)]
         } else {