store constructor and arguments for constant values

pkg/analyzer/test/src/dart/constant/evaluation_test.dart

Index: pkg/analyzer/test/src/dart/constant/evaluation_test.dart
diff --git a/pkg/analyzer/test/src/dart/constant/evaluation_test.dart b/pkg/analyzer/test/src/dart/constant/evaluation_test.dart
index 2be471d17a7f437fc8a6a329c9557773767ac698..f789be8340f91fa0dd0d56ebd0269f86db4e214c 100644
--- a/pkg/analyzer/test/src/dart/constant/evaluation_test.dart
+++ b/pkg/analyzer/test/src/dart/constant/evaluation_test.dart
@@ -1181,6 +1181,69 @@ const A a = const A();
     expect(value.toSymbolValue(), "void");
   }
 
+  test_getConstructor_withArgs() async {
+    CompilationUnit compilationUnit = await resolveSource(r'''
+class A {
+  final int i;
+  const A(this.i);
+}
+
+class C {
+  @A(5)
+  f() {}
+}
+''');
+    EvaluationResultImpl result =
+        _evaluateAnnotation(compilationUnit, "C", "f");
+    DartObjectImpl value = result.value;
+    expect(value.getConstructor(), isNotNull);
+    expect(value.getPositionalArguments(), hasLength(1));
+    expect(value.getPositionalArguments().single.toIntValue(), 5);
+    expect(value.getNamedArguments(), isEmpty);
+  }
+
+  test_getConstructor_withNamedArgs() async {
+    CompilationUnit compilationUnit = await resolveSource(r'''
+class A {
+  final int i;
+  const A({this.i});
+}
+
+class C {
+  @A(i: 5)
+  f() {}
+}
+''');
+    EvaluationResultImpl result =
+        _evaluateAnnotation(compilationUnit, "C", "f");
+    DartObjectImpl value = result.value;
+    expect(value.getConstructor(), isNotNull);
+    expect(value.getPositionalArguments(), isEmpty);
+    expect(value.getNamedArguments(), isNotEmpty);
+    expect(value.getNamedArguments()['i'].toIntValue(), 5);
+  }
+
+  test_getConstructor_redirectingFactory() async {
+    CompilationUnit compilationUnit = await resolveSource(r'''
+class A {
+  factory const A() = B;
+}
+
+class B implements A {
+  const B();
+}
+
+class C {
+  @A()
+  f() {}
+}
+''');
+    EvaluationResultImpl result =
+        _evaluateAnnotation(compilationUnit, "C", "f");
+    DartObjectImpl value = result.value;
+    expect(value.getConstructor().isFactory, isTrue);
+  }
+
   Map<String, DartObjectImpl> _assertFieldType(
       Map<String, DartObjectImpl> fields,
       String fieldName,