Fix for an analysis driver test misprint.

pkg/analyzer/test/src/dart/analysis/driver_test.dart

Index: pkg/analyzer/test/src/dart/analysis/driver_test.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/driver_test.dart b/pkg/analyzer/test/src/dart/analysis/driver_test.dart
index 3e4e6ea711456e658284ed9904571c1e2719c708..833f61d15a6c46ee0b74b6ccf3e793e8477fa0d9 100644
--- a/pkg/analyzer/test/src/dart/analysis/driver_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/driver_test.dart
@@ -383,7 +383,7 @@ import 'a.dart';
     var a = _p('/test/bin/a.dart');
     var b = _p('/test/bin/b.dart');
     provider.newFile(a, 'var a = 1;');
-    provider.newFile(a, 'var b = 2;');
+    provider.newFile(b, 'var b = 2;');
 
     driver.priorityFiles = [a];