Fix: An address was returned when the string was empty

Author: xida

LLDBPlugin/touchlab_kotlin_lldb/types/KonanStringSyntheticProvider.py

@@ -26,4 +26,7 @@ def get_child_at_index(self, _):
 
     def to_string(self):
         s = kotlin_object_to_string(self._process, self._valobj.unsigned)
-        return '"{}"'.format(s) if s else self._valobj.GetValue()
+        if s is None:
+            return self._valobj.GetValue()
+        else:
+            return '"{}"'.format(s)