Use named arguments for messages.

sdk/lib/_internal/compiler/implementation/ssa/builder.dart

 // Copyright (c) 2012, 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.
 
 part of ssa;
 
 /**
  * A special element for the extra parameter taken by intercepted
  * methods. We need to override [Element.computeType] because our
  * optimizers may look at its declared type.
@@ skipping 1609 matching lines @@
     // TODO(johnniwinther): remove the 'element.patch' hack.
     if (element is FunctionElement) {
       FunctionElement functionElement = element;
       if (functionElement.patch != null) element = functionElement.patch;
     }
     Script script = element.getCompilationUnit().script;
     SourceFile sourceFile = script.file;
     SourceFileLocation location = new SourceFileLocation(sourceFile, token);
     if (!location.isValid()) {
       throw MessageKind.INVALID_SOURCE_FILE_LOCATION.message(
-          [token.charOffset, sourceFile.filename, sourceFile.text.length]);
+          {'offset': token.charOffset,
+           'fileName': sourceFile.filename,
+           'length': sourceFile.text.length});
     }
     return location;
 }
 
   void visit(Node node) {
     if (node != null) node.accept(this);
   }
 
   visitBlock(Block node) {
     for (Link<Node> link = node.statements.nodes;
@@ skipping 3311 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }