Slight fix for var access

src/executor/executor.cpp

@@ -44,6 +44,12 @@ Value execute(Instruction inst) {
     if (inst.instruction == InstructionType::Assert) {
         return modules::assert(inst.args);
     }
+
+    // For all other instructions, evaluate the arguments first
+    for(auto& arg : inst.args) {
+        arg = evaluate(arg);
+    }
+
     if (inst.instruction == InstructionType::Variable) {
         auto& args = inst.args;
 
@@ -235,11 +241,6 @@ Value execute(Instruction inst) {
         return Value();
     }
 
-    // For all other instructions, evaluate the arguments first
-    for(auto& arg : inst.args) {
-        arg = evaluate(arg);
-    }
-
     // Then, execute the instruction with the evaluated arguments
     switch (inst.instruction) {
         case InstructionType::Print: