Added parent tag pointer throughout call hierarchy.Cleaned up output hierarchy parameter names.

__if.cpp

@@ -5,7 +5,7 @@
 
 namespace jet {
 
-   __if::__if(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global, "else") {
+   __if::__if(coreutils::ZString &in, coreutils::MString &parentOut, Global &global, Tag *parent) : Tag(in, parentOut, global, parent, "else") {
 
       coreutils::MString result;
       bool booleanResult = false;