src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/TreeImpl.java

*** 73,90 ****
--- 73,94 ----
                  return Kind.AND_ASSIGNMENT;
              case MUL:
                  return Kind.MULTIPLY;
              case ASSIGN_MUL:
                  return Kind.MULTIPLY_ASSIGNMENT;
+             case POS:
+                 return Kind.UNARY_PLUS;
              case ADD:
                  return Kind.PLUS;
              case INCPREFIX:
                  return Kind.PREFIX_INCREMENT;
              case INCPOSTFIX:
                  return Kind.POSTFIX_INCREMENT;
              case ASSIGN_ADD:
                  return Kind.PLUS_ASSIGNMENT;
+             case NEG:
+                 return Kind.UNARY_MINUS;
              case SUB:
                  return Kind.MINUS;
              case DECPREFIX:
                  return Kind.PREFIX_DECREMENT;
              case DECPOSTFIX: