cps-ir: Set runtime type information for new objects that require it.

pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart

Index: pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart
diff --git a/pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart b/pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart
index e91d58e64a5fde9fe1caa1a52b58b4e7000ae546..c77e5f2abe89a3b49ee6c3dccf9663c2e9da03c6 100644
--- a/pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart
+++ b/pkg/compiler/lib/src/cps_ir/shrinking_reductions.dart
@@ -657,6 +657,9 @@ class ParentVisitor extends RecursiveVisitor {
 
   processCreateInstance(CreateInstance node) {
     node.arguments.forEach((Reference ref) => ref.parent = node);
+    if (node.hasTypeInformation) {
+      node.typeInformation.forEach((Reference ref) => ref.parent = node);
+    }
   }
 
   processCreateBox(CreateBox node) {
@@ -669,6 +672,10 @@ class ParentVisitor extends RecursiveVisitor {
   processReadTypeVariable(ReadTypeVariable node) {
     node.target.parent = node;
   }
+
+  processTypeExpression(TypeExpression node) {
+    node.arguments.forEach((Reference ref) => ref.parent = node);
+  }
 }
 
 class _ReductionKind {