dart2js cps_ir: Use interceptors for is-checks (version 2)

pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart

Index: pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
diff --git a/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart b/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
index 00487eee81c15cec6848bb8c4c47fe8870c67e86..4bbaf386db5a165efcd220d1a36300ad57ca7f56 100644
--- a/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
+++ b/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
@@ -737,6 +737,11 @@ class StatementRewriter extends Transformer implements Pass {
     return node;
   }
 
+  Expression visitGetTypeTestProperty(GetTypeTestProperty node) {
+    node.object = visitExpression(node.object);
+    return node;
+  }
+
   Expression visitCreateBox(CreateBox node) {
     return node;
   }