Fix lint errors in sourcemap test

- Collapse nested if statements with let-chaining
- Use inline format args in assert messages
- Replace redundant closure with method reference

Co-authored-by: sapphi-red <49056869+sapphi-red@users.noreply.github.com>

Co-authored-by: sapphi-red <49056869+sapphi-red@users.noreply.github.com>

Author: Copilot

crates/oxc_codegen/tests/integration/sourcemap.rs

@@ -63,37 +63,30 @@ fn no_invalid_tokens_beyond_source() {
         if let Some(ref map) = result.map {
             // Verify all tokens have source positions within bounds
             for token in map.get_tokens() {
-                if let Some(source_id) = token.get_source_id() {
-                    if let Some(content) = map.get_source_content(source_id) {
-                        let src_line = token.get_src_line() as usize;
-                        let src_col = token.get_src_col() as usize;
-
-                        // Split source into lines
-                        let lines: Vec<&str> = content.split('\n').collect();
-
-                        // Verify line is within bounds
-                        assert!(
-                            src_line < lines.len(),
-                            "Invalid token: line {} is beyond source line count {} for source '{}'",
-                            src_line,
-                            lines.len(),
-                            source_text
-                        );
-
-                        // Verify column is within line bounds (UTF-16 column count)
-                        let line_content = lines[src_line];
-                        let line_len_utf16: usize =
-                            line_content.chars().map(|c| c.len_utf16()).sum();
-
-                        assert!(
-                            src_col < line_len_utf16,
-                            "Invalid token: column {} is beyond line length {} for line '{}' in source '{}'",
-                            src_col,
-                            line_len_utf16,
-                            line_content,
-                            source_text
-                        );
-                    }
+                if let Some(source_id) = token.get_source_id()
+                    && let Some(content) = map.get_source_content(source_id)
+                {
+                    let src_line = token.get_src_line() as usize;
+                    let src_col = token.get_src_col() as usize;
+
+                    // Split source into lines
+                    let lines: Vec<&str> = content.split('\n').collect();
+
+                    // Verify line is within bounds
+                    assert!(
+                        src_line < lines.len(),
+                        "Invalid token: line {src_line} is beyond source line count {} for source '{source_text}'",
+                        lines.len(),
+                    );
+
+                    // Verify column is within line bounds (UTF-16 column count)
+                    let line_content = lines[src_line];
+                    let line_len_utf16: usize = line_content.chars().map(char::len_utf16).sum();
+
+                    assert!(
+                        src_col < line_len_utf16,
+                        "Invalid token: column {src_col} is beyond line length {line_len_utf16} for line '{line_content}' in source '{source_text}'",
+                    );
                 }
             }
         }