Issue 26096. Explicitly compute the result that ensures that directives are resolved in units.

pkg/analyzer/test/generated/incremental_resolver_test.dart

Index: pkg/analyzer/test/generated/incremental_resolver_test.dart
diff --git a/pkg/analyzer/test/generated/incremental_resolver_test.dart b/pkg/analyzer/test/generated/incremental_resolver_test.dart
index afd10bf521072b96bdfb40cf0e13df969e9ebe1e..80c41e161d776d7cc153ef0dd1f8b41782955c5d 100644
--- a/pkg/analyzer/test/generated/incremental_resolver_test.dart
+++ b/pkg/analyzer/test/generated/incremental_resolver_test.dart
@@ -4905,8 +4905,9 @@ class B extends A {}
     _assertCacheUnitResult(RESOLVED_UNIT8);
     _assertCacheUnitResult(RESOLVED_UNIT9);
     _assertCacheUnitResult(RESOLVED_UNIT10);
+    _assertCacheUnitResult(RESOLVED_UNIT11);
     if (expectCachePostConstantsValid) {
-      _assertCacheUnitResult(RESOLVED_UNIT11);
+      _assertCacheUnitResult(RESOLVED_UNIT12);
       _assertCacheUnitResult(RESOLVED_UNIT);
     }
   }