fix: fix clippy errors in flow and language crates

Fixed an unused variable warning in `crates/language/src/lib.rs` and collapsed an if-let statement in `crates/flow/src/incremental/analyzer.rs` as mandated by clippy.

Co-authored-by: bashandbone <89049923+bashandbone@users.noreply.github.com>

Author: google-labs-jules[bot]

crates/flow/src/incremental/analyzer.rs

@@ -471,21 +471,21 @@ impl IncrementalAnalyzer {
         }
 
         // Save edges to storage in batch
-        if !edges_to_save.is_empty() {
-            if let Err(e) = self.storage.save_edges_batch(&edges_to_save).await {
-                warn!(
-                    error = %e,
-                    "batch save failed, falling back to individual saves"
-                );
-                for edge in &edges_to_save {
-                    if let Err(e) = self.storage.save_edge(edge).await {
-                        warn!(
-                            file_from = ?edge.from,
-                            file_to = ?edge.to,
-                            error = %e,
-                            "failed to save edge individually"
-                        );
-                    }
+        if !edges_to_save.is_empty()
+            && let Err(e) = self.storage.save_edges_batch(&edges_to_save).await
+        {
+            warn!(
+                error = %e,
+                "batch save failed, falling back to individual saves"
+            );
+            for edge in &edges_to_save {
+                if let Err(e) = self.storage.save_edge(edge).await {
+                    warn!(
+                        file_from = ?edge.from,
+                        file_to = ?edge.to,
+                        error = %e,
+                        "failed to save edge individually"
+                    );
                 }
             }
         }

crates/language/src/lib.rs

@@ -1735,6 +1735,9 @@ pub fn from_extension(path: &Path) -> Option<SupportLang> {
                 return Some(*lang);
             }
         }
+
+        // Silence unused variable warning if bash and ruby and all-parsers are not enabled
+        let _ = file_name;
     }
 
     // 3. Try shebang check as last resort