Fix analyzer test after making CompilerContext mandatory

pkg/analyzer/test/src/task/strong/front_end_inference_test.dart

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
 import 'package:front_end/src/base/instrumentation.dart' as fasta;
 import 'package:front_end/src/fasta/compiler_context.dart' as fasta;
+import 'package:front_end/src/fasta/compiler_command_line.dart' as fasta;
 import 'package:front_end/src/fasta/testing/validating_instrumentation.dart'
     as fasta;
 import 'package:front_end/src/fasta/util/relativize.dart' show relativizeUri;
 import 'package:kernel/kernel.dart' as fasta;
 import 'package:path/path.dart' as pathos;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../dart/analysis/base.dart';
 
@@ skipping 95 matching lines @@
     } else if (name.endsWith('=') &&
         element is PropertyAccessorElement &&
         element.isSetter) {
       name = name.substring(0, name.length - 1);
     }
     buffer.write(name);
   }
 }
 
 class _FrontEndInferenceTest extends BaseAnalysisDriverTest {
-  Future<String> runTest(String path, String code) async {
-    Uri uri = provider.pathContext.toUri(path);
+  Future<String> runTest(String path, String code) {
+    return fasta.CompilerCommandLine.withGlobalOptions("", [""], (_) async {
+      Uri uri = provider.pathContext.toUri(path);
 
-    List<int> lineStarts = new LineInfo.fromContent(code).lineStarts;
-    fasta.CompilerContext.current.uriToSource[relativizeUri(uri).toString()] =
-        new fasta.Source(lineStarts, UTF8.encode(code));
+      List<int> lineStarts = new LineInfo.fromContent(code).lineStarts;
+      fasta.CompilerContext.current.uriToSource[relativizeUri(uri).toString()] =
+          new fasta.Source(lineStarts, UTF8.encode(code));
 
-    var validation = new fasta.ValidatingInstrumentation();
-    await validation.loadExpectations(uri);
+      var validation = new fasta.ValidatingInstrumentation();
+      await validation.loadExpectations(uri);
 
-    _addFileAndImports(path, code);
+      _addFileAndImports(path, code);
 
-    AnalysisResult result = await driver.getResult(path);
-    result.unit.accept(new _InstrumentationVisitor(validation, uri));
+      AnalysisResult result = await driver.getResult(path);
+      result.unit.accept(new _InstrumentationVisitor(validation, uri));
 
-    validation.finish();
+      validation.finish();
 
-    if (validation.hasProblems) {
-      if (fixProblems) {
-        validation.fixSource(uri, true);
+      if (validation.hasProblems) {
+        if (fixProblems) {
+          validation.fixSource(uri, true);
+          return null;
+        } else {
+          return validation.problemsAsString;
+        }
+      } else {
         return null;
-      } else {
-        return validation.problemsAsString;
       }
-    } else {
-      return null;
-    }
+    });
   }
 
   void _addFileAndImports(String path, String code) {
     provider.newFile(path, code);
     var source = null;
     var analysisErrorListener = null;
     var scanner = new Scanner(
         source, new CharSequenceReader(code), analysisErrorListener);
     var token = scanner.tokenize();
     var compilationUnit =
@@ skipping 461 matching lines @@
 
   /// Based on DDC code generator's `_recoverTypeArguments`
   Iterable<DartType> _recoverTypeArguments(FunctionType g, FunctionType f) {
     assert(identical(g.element, f.element));
     assert(g.typeFormals.isNotEmpty && f.typeFormals.isEmpty);
     assert(g.typeFormals.length + g.typeArguments.length ==
         f.typeArguments.length);
     return f.typeArguments.skip(g.typeArguments.length);
   }
 }