Unifying compiler context

pkg/front_end/lib/src/fasta/source/source_loader.dart

 // Copyright (c) 2016, 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.
 
 library fasta.source_loader;
 
 import 'dart:async' show Future;
 
 import 'dart:typed_data' show Uint8List;
 
@@ skipping 62 matching lines @@
 
 class SourceLoader<L> extends Loader<L> {
   /// The [FileSystem] which should be used to access files.
   final FileSystem fileSystem;
 
   /// Whether comments should be scanned and parsed.
   final bool includeComments;
 
   final Map<Uri, List<int>> sourceBytes = <Uri, List<int>>{};
 
-  final bool excludeSource = CompilerContext.current.options.excludeSource;
+  final bool excludeSource = !CompilerContext.current.options.embedSourceText;
 
   // Used when building directly to kernel.
   ClassHierarchy hierarchy;
   CoreTypes coreTypes;
 
   TypeInferenceEngine typeInferenceEngine;
 
   Instrumentation instrumentation;
 
   SourceLoader(this.fileSystem, this.includeComments, KernelTarget target)
@@ skipping 439 matching lines @@
   Expression throwCompileConstantError(Expression error) {
     return target.backendTarget.throwCompileConstantError(coreTypes, error);
   }
 
   Expression buildCompileTimeError(Message message, int offset, Uri uri) {
     String text = target.context
         .format(message.withLocation(uri, offset), Severity.error);
     return target.backendTarget.buildCompileTimeError(coreTypes, text, offset);
   }
 }