typeInformation in CreateInstance is a kind of TypeExpression

pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart

Index: pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart
diff --git a/pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart b/pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart
index 63b7528d0711955e8457fc49d0e0b6d417b1e67b..3e990abf6cf37ea86fc8ce99aaee35055f4777d9 100644
--- a/pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart
+++ b/pkg/compiler/lib/src/tree_ir/tree_ir_nodes.dart
@@ -114,7 +114,7 @@ class Variable extends Node {
     assert(host != null);
   }
 
-  String toString() => element == null ? 'Variable' : element.toString();
+  String toString() => element == null ? 'Variable.${hashCode}' : element.toString();
 }
 
 /// Read the value of a variable.
@@ -669,7 +669,7 @@ class CreateBox extends Expression {
 class CreateInstance extends Expression {
   ClassElement classElement;
   List<Expression> arguments;
-  List<Expression> typeInformation;
+  Expression typeInformation;
   SourceInformation sourceInformation;
 
   CreateInstance(this.classElement, this.arguments,
@@ -904,8 +904,9 @@ class ForeignStatement extends ForeignCode implements Statement {
 class TypeExpression extends Expression {
   final DartType dartType;
   final List<Expression> arguments;
+  final bool isForInstance;
 
-  TypeExpression(this.dartType, this.arguments);
+  TypeExpression(this.dartType, this.arguments, this.isForInstance);
 
   accept(ExpressionVisitor visitor) {
     return visitor.visitTypeExpression(this);
@@ -1216,7 +1217,7 @@ abstract class RecursiveVisitor implements StatementVisitor, ExpressionVisitor {
 
   visitCreateInstance(CreateInstance node) {
     node.arguments.forEach(visitExpression);
-    node.typeInformation.forEach(visitExpression);
+    if (node.typeInformation != null) visitExpression(node.typeInformation);
   }
 
   visitReifyRuntimeType(ReifyRuntimeType node) {
@@ -1457,7 +1458,8 @@ class RecursiveTransformer extends Transformer {
 
   visitCreateInstance(CreateInstance node) {
     _replaceExpressions(node.arguments);
-    _replaceExpressions(node.typeInformation);
+    if (node.typeInformation != null)
+      node.typeInformation = visitExpression(node.typeInformation);

[asgerf, 2016/01/26 10:30:01]

I have been told we need {} around the body of multi-line if.

[sra1, 2016/01/26 22:21:08]

Done.

     return node;
   }