Fix AST summarization when there are explicit calls to super constructors.

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

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This library is capable of producing linked summaries from unlinked
  * ones (or prelinked ones).  It functions by building a miniature
  * element model to represent the contents of the summaries, and then
  * scanning the element model to gather linked information and adding
  * it to the summary data structures.
@@ skipping 552 matching lines @@
       }
     } else if (unlinkedExecutable.isFactory) {
       // Factory constructor, but getConstRedirectedConstructor returned
       // null.  This can happen if we're visiting one of the special external
       // const factory constructors in the SDK, or if the code contains
       // errors (such as delegating to a non-const constructor, or delegating
       // to a constructor that can't be resolved).  In any of these cases,
       // we'll evaluate calls to this constructor without having to refer to
       // any other constants.  So we don't need to report any dependencies.
     } else {
+      ClassElementForLink superClass = enclosingClass.supertype?.element;
       bool superInvocationFound = false;
       for (UnlinkedConstructorInitializer constructorInitializer
           in constructorElement._unlinkedExecutable.constantInitializers) {
         if (constructorInitializer.kind ==
             UnlinkedConstructorInitializerKind.superInvocation) {
           superInvocationFound = true;
+          if (superClass != null && !superClass.isObject) {
+            ConstructorElementForLink constructor = superClass
+                .getContainedName(constructorInitializer.name)
+                .asConstructor;
+            safeAddDependency(constructor?._constNode);
+          }
         }
         CompilationUnitElementForLink compilationUnit =
             constructorElement.enclosingElement.enclosingElement;
         collectDependencies(
             dependencies, constructorInitializer.expression, compilationUnit);
         constructorInitializer.arguments.map((UnlinkedConst unlinkedConst) =>
             collectDependencies(dependencies, unlinkedConst, compilationUnit));
       }
 
       if (!superInvocationFound) {
         // No explicit superconstructor invocation found, so we need to
         // manually insert a reference to the implicit superconstructor.
-        ClassElementForLink superClass = enclosingClass.supertype?.element;
         if (superClass != null && !superClass.isObject) {
           ConstructorElementForLink unnamedConstructor =
               superClass.unnamedConstructor;
           safeAddDependency(unnamedConstructor?._constNode);
         }
       }
       for (FieldElementForLink field in enclosingClass.fields) {
         // Note: non-static const isn't allowed but we handle it anyway so
         // that we won't be confused by incorrect code.
         if ((field.isFinal || field.isConst) && !field.isStatic) {
@@ skipping 895 matching lines @@
 
   /**
    * Throw away any information produced by a previous call to [link].
    */
   void unlink() {
     for (LibraryElementInBuildUnit library in _librariesInBuildUnit) {
       library.unlink();
     }
   }
 }