Extract unresolved AST parsing (PARSED_UNIT1) from full parsing, which includes UriBasedDirective(s…

pkg/analyzer/test/src/task/incremental_element_builder_test.dart

Index: pkg/analyzer/test/src/task/incremental_element_builder_test.dart
diff --git a/pkg/analyzer/test/src/task/incremental_element_builder_test.dart b/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
index 56f174e4f773c459f535c5dc1930d1846882f5a4..15b46105ed50ca84e07a6c0db50cff1ebae17727 100644
--- a/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
+++ b/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
@@ -2003,6 +2003,7 @@ main() {
       // Flush all tokens, ASTs and elements.
       context.analysisCache.flush((target, result) {
         return result == TOKEN_STREAM ||
+            result == PARSED_UNIT1 ||
             result == PARSED_UNIT ||
             RESOLVED_UNIT_RESULTS.contains(result) ||
             LIBRARY_ELEMENT_RESULTS.contains(result);