--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/BlockStatement.java	Wed Jul 05 20:16:23 2017 +0200
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/BlockStatement.java	Wed Jan 28 17:58:08 2015 +0100
@@ -40,6 +40,15 @@
     /**
      * Constructor
      *
+     * @param block the block to execute
+     */
+    public BlockStatement(final Block block) {
+        this(block.getFirstStatementLineNumber(), block);
+    }
+
+    /**
+     * Constructor
+     *
      * @param lineNumber line number
      * @param block the block to execute
      */