fixes #26993, constant evaluation gets wrong type

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

Index: pkg/analyzer/lib/src/generated/static_type_analyzer.dart
diff --git a/pkg/analyzer/lib/src/generated/static_type_analyzer.dart b/pkg/analyzer/lib/src/generated/static_type_analyzer.dart
index d144c76f7557c75bf2a87f763ba3b1a0467e231b..f68147180e5529973e12766669e0348cd963a001 100644
--- a/pkg/analyzer/lib/src/generated/static_type_analyzer.dart
+++ b/pkg/analyzer/lib/src/generated/static_type_analyzer.dart
@@ -2011,7 +2011,11 @@ class StaticTypeAnalyzer extends SimpleAstVisitor<Object> {
       arguments.correspondingStaticParameters = ResolverVisitor
           .resolveArgumentsToParameters(arguments, inferred.parameters, null);
       inferConstructorName(constructor, inferred.returnType);
-      // TODO(jmesserly): should we fix up the staticElement as well?
+      // Update the static element as well. This is used in some cases, such as
+      // computing constant values. It is stored in two places.
+      constructor.staticElement =
+          ConstructorMember.from(rawElement, inferred.returnType);
+      node.staticElement = constructor.staticElement;
     }
   }