Serialize constant instance creation of generic classes.

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

Index: pkg/analyzer/lib/src/summary/summarize_elements.dart
diff --git a/pkg/analyzer/lib/src/summary/summarize_elements.dart b/pkg/analyzer/lib/src/summary/summarize_elements.dart
index 5c50d2e14fdc8520923aa7c0617ee06944f47ebb..4d903184321a0f7cc6093266f916652a3f0f913e 100644
--- a/pkg/analyzer/lib/src/summary/summarize_elements.dart
+++ b/pkg/analyzer/lib/src/summary/summarize_elements.dart
@@ -678,7 +678,7 @@ class _CompilationUnitSerializer {
    * Serialize the given [type] into a [EntityRef].  If [slot] is provided,
    * it should be included in the [EntityRef].  If [linked] is true, any
    * references that are created will be populated into [linkedReferences] but
-   * [not [unlinkedReferences].
+   * not [unlinkedReferences].
    *
    * [context] is the element within which the [EntityRef] will be
    * interpreted; this is used to serialize type parameters.
@@ -830,9 +830,6 @@ class _CompilationUnitSerializer {
 
   int _getElementReferenceId(Element element, {bool linked: false}) {
     return referenceMap.putIfAbsent(element, () {
-      if (element is ConstructorElement && element.displayName.isEmpty) {
-        return _getElementReferenceId(element.enclosingElement, linked: linked);
-      }
       LibraryElement dependentLibrary = element?.library;
       int unit;
       if (dependentLibrary == null) {
@@ -911,10 +908,23 @@ class _ConstExprSerializer extends AbstractConstExprSerializer {
 
   @override
   EntityRefBuilder serializeConstructorName(ConstructorName constructor) {
-    ConstructorElement element = constructor.staticElement;
-    assert(element != null);
-    int referenceId = serializer._getElementReferenceId(element);
-    return new EntityRefBuilder(reference: referenceId);
+    DartType type = constructor.type.type;
+    EntityRefBuilder typeRef = serializer.serializeTypeRef(type, null);
+    if (constructor.name == null) {
+      return typeRef;
+    } else {
+      int typeId = typeRef.reference;
+      LinkedReference typeLinkedRef = serializer.linkedReferences[typeId];
+      serializer.unlinkedReferences.add(new UnlinkedReferenceBuilder(
+          name: constructor.name.name, prefixReference: typeId));
+      int refId = serializer.linkedReferences.length;
+      serializer.linkedReferences.add(new LinkedReferenceBuilder(
+          kind: ReferenceKind.constructor,
+          dependency: typeLinkedRef.dependency,
+          unit: typeLinkedRef.unit));
+      return new EntityRefBuilder(
+          reference: refId, typeArguments: typeRef.typeArguments);
+    }
   }
 
   EntityRefBuilder serializeIdentifier(Identifier identifier) {