Refactor dart:developer log to use named parameters

sdk/lib/_internal/js_runtime/lib/developer_patch.dart

Index: sdk/lib/_internal/js_runtime/lib/developer_patch.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/developer_patch.dart b/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
index abc4ff198d8fa781cb1fae67376dec87891a7c2c..8ec8d4380b611354f109d32478094708f3ad8cea 100644
--- a/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
+++ b/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
@@ -41,13 +41,13 @@ inspect(object) {
 /// [zone] (optional) the zone where the log was emitted
 /// [error] (optional) an error object associated with this log event.
 /// [stackTrace] (optional) a stack trace associated with this log event.
-log(int sequenceNumber,
-    int millisecondsSinceEpoch,
-    int level,
-    String name,
-    String message,
-    [Zone zone,
+log({int sequenceNumber,
+     int millisecondsSinceEpoch,
+     int level,
+     String name,
+     String message,
+     Zone zone,
      Object error,
-     StackTrace stackTrace]) {
+     StackTrace stackTrace}) {
   // TODO.
-}
+}