Use an import prefix in the analysis server tests; this fixes some issues conflicting with the

pkg/analysis_server/test/integration/analysis/get_hover_test.dart

Index: pkg/analysis_server/test/integration/analysis/get_hover_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis/get_hover_test.dart b/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
index 921a266832918ac52747f078536b5133f5018247..7c6a742e8ee7d54d52b15f1063017d26c73fceeb 100644
--- a/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
+++ b/pkg/analysis_server/test/integration/analysis/get_hover_test.dart
@@ -7,7 +7,7 @@ library test.integration.analysis.get.hover;
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
-import 'package:path/path.dart';
+import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
@@ -78,7 +78,7 @@ main() {
       expect(info.offset, equals(offset));
       expect(info.length, equals(length));
       if (isCore) {
-        expect(basename(info.containingLibraryPath), equals('core.dart'));
+        expect(path.basename(info.containingLibraryPath), equals('core.dart'));
         expect(info.containingLibraryName, equals('dart.core'));
       } else if (isLocal || isLiteral) {
         expect(info.containingLibraryPath, isNull);