Fix a corner case of constant constructor dependency computation.

pkg/analyzer/test/src/task/dart_test.dart

Index: pkg/analyzer/test/src/task/dart_test.dart
diff --git a/pkg/analyzer/test/src/task/dart_test.dart b/pkg/analyzer/test/src/task/dart_test.dart
index 4036ee2f1e26428930c9095736faf6385fa61035..cfbfc2e06cd2308d37125ff33969a5cedc7348e0 100644
--- a/pkg/analyzer/test/src/task/dart_test.dart
+++ b/pkg/analyzer/test/src/task/dart_test.dart
@@ -1495,6 +1495,21 @@ const d = a;
 ''');
   }
 
+  test_const_constructor_calls_implicit_super_constructor_implicitly() {
+    // Note: the situation below is a compile-time error (since the synthetic
+    // constructor for Base is non-const), but we need to handle it without
+    // throwing an exception.
+    EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
+        'x', '''
+class Base {}
+class Derived extends Base {
+  const Derived();
+}
+const x = const Derived();
+''');
+    expect(evaluationResult, isNotNull);
+  }
+
   test_dependency() {
     EvaluationResultImpl evaluationResult = _computeTopLevelVariableConstValue(
         'x', '''