Clean-up several warnings

pkg/analyzer/test/generated/all_the_rest_test.dart

Index: pkg/analyzer/test/generated/all_the_rest_test.dart
diff --git a/pkg/analyzer/test/generated/all_the_rest_test.dart b/pkg/analyzer/test/generated/all_the_rest_test.dart
index 2238387e8ce3cfb357febc8cc8d98e136e78e9d4..ffdc691ce350f9371ff0915f5e206520b64e1567 100644
--- a/pkg/analyzer/test/generated/all_the_rest_test.dart
+++ b/pkg/analyzer/test/generated/all_the_rest_test.dart
@@ -25,7 +25,7 @@ import 'package:analyzer/src/generated/java_engine_io.dart';
 import 'package:analyzer/src/generated/java_io.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/sdk.dart';
-import 'package:analyzer/src/generated/sdk_io.dart'; // ignore: deprecated_member_use
+import 'package:analyzer/src/generated/sdk_io.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/testing/ast_test_factory.dart';
@@ -948,7 +948,8 @@ zap: baz
     int offset = src.indexOf('baz');
     int length = 'baz'.length;
 
-    SourceSpan span = new SourceFile(src).span(offset, offset + length);
+    SourceSpan span = new SourceSpanBase(
+        new SourceLocation(offset), new SourceLocation(offset + length), 'baz');
 
     reporter.reportErrorForSpan(
         AnalysisOptionsWarningCode.UNSUPPORTED_OPTION_WITH_LEGAL_VALUE,