Fix for test_uriDoesNotExist_import_disappears_when_fixed().

pkg/analyzer/test/generated/compile_time_error_code_test.dart

Index: pkg/analyzer/test/generated/compile_time_error_code_test.dart
diff --git a/pkg/analyzer/test/generated/compile_time_error_code_test.dart b/pkg/analyzer/test/generated/compile_time_error_code_test.dart
index b3e4254ccfcfcb53902a763c910b3cd625367112..6577d9fdb00ef55b4f9dd3f900e2c2ecd03a2d38 100644
--- a/pkg/analyzer/test/generated/compile_time_error_code_test.dart
+++ b/pkg/analyzer/test/generated/compile_time_error_code_test.dart
@@ -6172,16 +6172,21 @@ main() {
     await computeAnalysisResult(source);
     assertErrors(source, [CompileTimeErrorCode.URI_DOES_NOT_EXIST]);
 
-    // Check that the file is represented as missing.
-    Source target = analysisContext2
-        .getSourcesWithFullName(resourceProvider.convertPath("/target.dart"))
-        .first;
-    expect(analysisContext2.getModificationStamp(target), -1);
-
-    // Add an overlay in the same way as AnalysisServer.
-    analysisContext2
-      ..setContents(target, "")
-      ..handleContentsChanged(target, null, "", true);
+    String targetPath = resourceProvider.convertPath('/target.dart');
+    if (enableNewAnalysisDriver) {
+      // Add an overlay in the same way as AnalysisServer.
+      fileContentOverlay[targetPath] = '';
+      driver.changeFile(targetPath);
+    } else {
+      // Check that the file is represented as missing.
+      Source target = analysisContext2.getSourcesWithFullName(targetPath).first;
+      expect(analysisContext2.getModificationStamp(target), -1);
+
+      // Add an overlay in the same way as AnalysisServer.
+      analysisContext2
+        ..setContents(target, "")
+        ..handleContentsChanged(target, null, "", true);
+    }
 
     // Make sure the error goes away.
     await computeAnalysisResult(source);