Make the test analysis driver compatible.

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 00f34dda85dec5e4e7d477fb574d9d349db72a86..73b66dd95b80497a57807a2ad45567366caae8ac 100644
--- a/pkg/analyzer/test/generated/compile_time_error_code_test.dart
+++ b/pkg/analyzer/test/generated/compile_time_error_code_test.dart
@@ -6174,10 +6174,14 @@ main() {
     assertErrors(test, [HintCode.UNUSED_IMPORT]);
 
     // Remove the overlay in the same way as AnalysisServer.
-    resourceProvider.deleteFile(resourceProvider.convertPath('/target.dart'));
-    analysisContext2.setContents(target, null);
-    ChangeSet changeSet = new ChangeSet()..removedSource(target);
-    analysisContext2.applyChanges(changeSet);
+    resourceProvider.deleteFile(target.fullName);
+    if (enableNewAnalysisDriver) {
+      driver.removeFile(target.fullName);
+    } else {
+      analysisContext2.setContents(target, null);
+      ChangeSet changeSet = new ChangeSet()..removedSource(target);
+      analysisContext2.applyChanges(changeSet);
+    }
 
     await computeAnalysisResult(test);
     assertErrors(test, [CompileTimeErrorCode.URI_DOES_NOT_EXIST]);