dump.c: add dumping of %iprint

dump.c

@@ -1,8 +1,8 @@
 /*
  * dump.c - Dump objects in the native FPD format
  *
- * Written 2009-2012 by Werner Almesberger
- * Copyright 2009-2012 by Werner Almesberger
+ * Written 2009-2012, 2014 by Werner Almesberger
+ * Copyright 2009-2012, 2014 by Werner Almesberger
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -383,6 +383,11 @@ char *print_obj(const struct obj *obj, const struct vec *prev)
 		}
 		free(s2);
 		break;
+	case ot_iprint:
+		s2 = unparse(obj->u.iprint.expr);
+		s = stralloc_printf("%%iprint %s", s2);
+		free(s2);
+		break;
 	default:
 		abort();
 	}

test/iprint

@@ -98,4 +98,19 @@ expect <<EOF
 undefined variable "foo"
 EOF
 
+#------------------------------------------------------------------------------
+
+fped_dump "iprint: dump" <<EOF
+%iprint 42
+EOF
+expect <<EOF
+42
+/* MACHINE-GENERATED ! */
+
+package "_"
+unit mm
+
+%iprint 42
+EOF
+
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