Verify that required param constants are accessible outside the declaring lib (#26440).

pkg/analyzer/lib/src/generated/error.dart

Index: pkg/analyzer/lib/src/generated/error.dart
diff --git a/pkg/analyzer/lib/src/generated/error.dart b/pkg/analyzer/lib/src/generated/error.dart
index 6803ac6af377d9e86e828a2987fdddb023d075ff..c21e7e6c8953429165c6232dd17f5cf35308366e 100644
--- a/pkg/analyzer/lib/src/generated/error.dart
+++ b/pkg/analyzer/lib/src/generated/error.dart
@@ -3595,7 +3595,8 @@ class HintCode extends ErrorCode {
    * 1: message details
    */
   static const HintCode MISSING_REQUIRED_PARAM_WITH_DETAILS = const HintCode(
-      'MISSING_REQUIRED_PARAM', "The parameter '{0}' is required. {1}");
+      'MISSING_REQUIRED_PARAM_WITH_DETAILS',
+      "The parameter '{0}' is required. {1}");
 
   /**
    * Generate a hint for an element that is annotated with `@JS(...)` whose