Build full LIBRARY_ELEMENT for every library source in the import/export closure, when resolve a un…

pkg/analyzer/lib/src/task/dart.dart

Index: pkg/analyzer/lib/src/task/dart.dart
diff --git a/pkg/analyzer/lib/src/task/dart.dart b/pkg/analyzer/lib/src/task/dart.dart
index a85273b604b34fd6beff5642664d108df1f1c0d9..7ec2d0ea93a17e9fdb75cfd30040f2405a504d85 100644
--- a/pkg/analyzer/lib/src/task/dart.dart
+++ b/pkg/analyzer/lib/src/task/dart.dart
@@ -243,7 +243,7 @@ final ResultDescriptor<LibraryElement> LIBRARY_ELEMENT4 =
 /**
  * The partial [LibraryElement] associated with a library.
  *
- * [LIBRARY_ELEMENT4] plus [RESOLVED_UNIT4] for every unit.
+ * [LIBRARY_ELEMENT4] plus resolved types for every element.
  *
  * The result is only available for [Source]s representing a library.
  */
@@ -3131,6 +3131,9 @@ class ResolveVariableReferencesTask extends SourceBasedAnalysisTask {
    */
   static Map<String, TaskInput> buildInputs(LibrarySpecificUnit target) {
     return <String, TaskInput>{
+      'fullyBuiltLibraryElements': IMPORT_EXPORT_SOURCE_CLOSURE
+          .of(target.library)
+          .toListOf(LIBRARY_ELEMENT),
       LIBRARY_INPUT: LIBRARY_ELEMENT.of(target.library),
       UNIT_INPUT: RESOLVED_UNIT4.of(target),
       TYPE_PROVIDER_INPUT: TYPE_PROVIDER.of(AnalysisContextTarget.request)