Fix missing field tid bug (#163)

src/ghidra/p_code_extractor/internal/HelperFunctions.java

@@ -164,9 +164,9 @@ public final class HelperFunctions {
      * by some_function().
      * 
      */
-    public static Boolean notInReferences(Function func) {
+    public static Boolean sameSymbolNameNotCallingCurrentSymbol(Function func) {
         for(Function calling : func.getCallingFunctions(monitor)) {
-            if(calling.getName().equals(func.getName()) && calling.isThunk()) {
+            if(calling.getName().equals(func.getName()) && calling.isThunk() && !calling.getEntryPoint().toString().equals(func.getEntryPoint().toString())) {
                 return false;
             }
         }

src/ghidra/p_code_extractor/symbol/ExternSymbolCreator.java

@@ -96,7 +96,7 @@ public class ExternSymbolCreator {
             ExternSymbol extSym = new ExternSymbol();
             extSym.setName(functions.getKey());
             for(Function func : functions.getValue()) {
-                if(HelperFunctions.notInReferences(func)) {
+                if(HelperFunctions.sameSymbolNameNotCallingCurrentSymbol(func)) {
                     extSym.setTid(new Tid(String.format("sub_%s", func.getEntryPoint().toString()), func.getEntryPoint().toString()));
                     extSym.setNoReturn(func.hasNoReturn());
                     extSym.setArguments(createArguments(func));