How to determine where class members etc are getting resolved from in AST when using multiple packages?

[Practical-UVM-Step-By-Step]

Hello Mike:
I have a question about how to determine cross references in the AST tree. I'm trying to use a new rule in the slang-tidy and have a question.

Here is an example:

package mypackage;
int a; // This will be used in another package
endpackage

package mypackage2;
import mypackage::*;

class myclass_new;
int my_new;
// some variables
function new;
my_new = a; // The 'a' is from the mypackage
endfunction
endclass
endpackage

module top;
import mypackage::;
import mypackage2::;
// class created etc.
endmodule

The generated AST has the physical address of the variable 'a'.

here is an extract for the above one from slang-driver for the relevant portion.

"expr": {
"kind": "Assignment",
"type": "int",
"left": {
"kind": "NamedValue",
"type": "int",
"symbol": "2199025930208 my_new"
},
"right": {
"kind": "NamedValue",
"type": "int",
"symbol": "2199025923840 a"
},
"isNonBlocking": false
...

My question is when traversing through a visitor (like you have in your slang-tidy examples) what should I be looking for in the Symbol to help me figure out that this was a cross reference to another package? the SymbolKind in Symbol.h didnt give me any clues. Should I be looking elsewhere inside the implementation of a check or in the compilation for example?

The application I have is about determining if a package/class/method is pulling in variables/defintions from another package because if you're migrating frm one package to another, it would be good to dump out all the cross-package references or flag them.
Ideas and insights are gratefully appreciated
Thank you

[MikePopoloski]

You can call getParentScope() on any symbol to see where it's declared. If that scope differs from your current scope then you know it's a reference to some other package.

[Practical-UVM-Step-By-Step]

Thank you Mike for the response.