Resynthesize parameter visible ranges.

pkg/analyzer/lib/src/summary/resynthesize.dart

Index: pkg/analyzer/lib/src/summary/resynthesize.dart
diff --git a/pkg/analyzer/lib/src/summary/resynthesize.dart b/pkg/analyzer/lib/src/summary/resynthesize.dart
index a5f1345d1795e675aa5575251fc8494b9c97600f..1d27fc29747cbf2390352e8ebc4c7699b7f3c63d 100644
--- a/pkg/analyzer/lib/src/summary/resynthesize.dart
+++ b/pkg/analyzer/lib/src/summary/resynthesize.dart
@@ -1711,6 +1711,10 @@ class _LibraryResynthesizer {
         parameterElement.parameterKind = ParameterKind.REQUIRED;
         break;
     }
+    if (serializedParameter.visibleOffset != 0) {
+      parameterElement.setVisibleRange(
+          serializedParameter.visibleOffset, serializedParameter.visibleLength);
+    }
     return parameterElement;
   }