Apply suggestions from code review

Co-authored-by: Sebastian Zivota <loewenheim@users.noreply.github.com>

Author: vaind

symbolic-debuginfo/src/sourcebundle.rs

@@ -1151,13 +1151,10 @@ mod tests {
             .flat_map(|f| {
                 let path = f.abs_path_str();
                 session.source_by_path(&path).ok().flatten().map(|source| {
-                    (
-                        path,
-                        match source {
-                            SourceCode::Content(text) => text.into_owned(),
-                            SourceCode::Url(_) => panic!(),
-                        },
-                    )
+                     let SourceCode::Content(text) = source else {
+                         unreachable!();
+                     };
+                    (path, text.into_owned())
                 })
             })
             .collect();

symbolic-ppdb/src/format/sourcelinks.rs

@@ -53,8 +53,8 @@ impl SourceLinkMappings {
             */
             let key = doc.0.to_lowercase();
             let url = doc.1.as_str().ok_or_else(Self::err)?.into();
-            let pattern = if key.ends_with('*') {
-                Pattern::Prefix(key[..(key.len() - 1)].into())
+            let pattern = if let Some(prefix) = key.strip_suffix('*') {
+                Pattern::Prefix(prefix.into())
             } else {
                 Pattern::Exact(key)
             };
@@ -103,11 +103,8 @@ impl SourceLinkMappings {
                     }
                 }
                 Pattern::Prefix(value) => {
-                    if path_lower.starts_with(value) {
-                        let replacement = path
-                            .get(value.len()..)
-                            .map(|v| v.replace('\\', "/"))
-                            .unwrap_or_default();
+                    if let Some(rest) = path_lower.strip_prefix(value) {
+                        let replacement = rest.replace('\\', "/");
                         return Some(rule.url.replace('*', &replacement));
                     }
                 }