Remove Compiler/JavaScriptBackend from metadata_collector

pkg/compiler/lib/src/dump_info.dart

Index: pkg/compiler/lib/src/dump_info.dart
diff --git a/pkg/compiler/lib/src/dump_info.dart b/pkg/compiler/lib/src/dump_info.dart
index 3194e57e7b2cd434d83047918a7a3b4af9bfc80c..67696cda0a740ba04ec207c83b086f9d48883995 100644
--- a/pkg/compiler/lib/src/dump_info.dart
+++ b/pkg/compiler/lib/src/dump_info.dart
@@ -42,7 +42,7 @@ class ElementInfoCollector extends BaseElementVisitor<Info, dynamic> {
     compiler.dumpInfoTask._constantToNode.forEach((constant, node) {
       // TODO(sigmund): add dependencies on other constants
       var size = compiler.dumpInfoTask._nodeToSize[node];
-      var code = jsAst.prettyPrint(node, compiler);
+      var code = jsAst.prettyPrint(node, compiler.options);
       var info = new ConstantInfo(
           size: size, code: code, outputUnit: _unitInfoForConstant(constant));
       _constantToInfo[constant] = info;
@@ -533,7 +533,7 @@ class DumpInfoTask extends CompilerTask implements InfoReporter {
     // Concatenate rendered ASTs.
     StringBuffer sb = new StringBuffer();
     for (jsAst.Node ast in code) {
-      sb.writeln(jsAst.prettyPrint(ast, compiler));
+      sb.writeln(jsAst.prettyPrint(ast, compiler.options));
     }
     return sb.toString();
   }