Add toStructuredText to ConstantExpression and align method names with ConstantValue

pkg/compiler/lib/src/io/position_information.dart

Index: pkg/compiler/lib/src/io/position_information.dart
diff --git a/pkg/compiler/lib/src/io/position_information.dart b/pkg/compiler/lib/src/io/position_information.dart
index 38df2215a7153fff167a3b3e4e9c5f53920c5d50..3b01a6fe4140bc01e220ed593568894081b664b3 100644
--- a/pkg/compiler/lib/src/io/position_information.dart
+++ b/pkg/compiler/lib/src/io/position_information.dart
@@ -8,7 +8,8 @@
 library dart2js.source_information.position;
 
 import '../common.dart';
-import '../elements/elements.dart' show AstElement, FieldElement, ResolvedAst, ResolvedAstKind;
+import '../elements/elements.dart'
+    show AstElement, FieldElement, ResolvedAst, ResolvedAstKind;
 import '../js/js.dart' as js;
 import '../js/js_debug.dart';
 import '../js/js_source_mapping.dart';
@@ -150,14 +151,14 @@ class PositionSourceInformationBuilder implements SourceInformationBuilder {
   SourceInformation buildDeclaration(ResolvedAst resolvedAst) {
     if (resolvedAst.kind != ResolvedAstKind.PARSED) {
       SourceSpan span = resolvedAst.element.sourcePosition;
-      return new PositionSourceInformation(new OffsetSourceLocation(
-          sourceFile, span.begin, name));
+      return new PositionSourceInformation(
+          new OffsetSourceLocation(sourceFile, span.begin, name));
     } else {
       return new PositionSourceInformation(
-          new OffsetSourceLocation(sourceFile,
-              resolvedAst.node.getBeginToken().charOffset, name),
-          new OffsetSourceLocation(sourceFile,
-              resolvedAst.node.getEndToken().charOffset, name));
+          new OffsetSourceLocation(
+              sourceFile, resolvedAst.node.getBeginToken().charOffset, name),
+          new OffsetSourceLocation(
+              sourceFile, resolvedAst.node.getEndToken().charOffset, name));
     }
   }