Fix static analysis issues for dart 3.6 (#2462)

Author: ntkme

lib/src/callable/built_in.dart

@@ -109,7 +109,9 @@ final class BuiltInCallable implements Callable, AsyncBuiltInCallable {
         // If two overloads have the same mismatch distance, favor the overload
         // that has more arguments.
         if (mismatchDistance.abs() == minMismatchDistance.abs() &&
-            mismatchDistance < 0) continue;
+            mismatchDistance < 0) {
+          continue;
+        }
       }
 
       minMismatchDistance = mismatchDistance;

lib/src/embedded/compilation_dispatcher.dart

@@ -91,7 +91,7 @@ final class CompilationDispatcher {
           case InboundMessage_Message.notSet:
             throw parseError("InboundMessage.message is not set.");
 
-          default:
+          default: // ignore: unreachable_switch_default
             throw parseError(
                 "Unknown message type: ${message.toDebugString()}");
         }