Attempting to print the expression tree. I think the printing code is fine but the Parser is bugged and not building the tree correctly.

lox.c

@@ -39,7 +39,9 @@ void RunFile(const char* path) {
     TokenList* tokens = ScanTokens(contents);
     free(contents);
     Print(tokens);
+    printf("TREE:\n");
     Expr* tree = GenerateExpressionTree(tokens);
+    PrintExpressionTree(tree);
     FreeExpressionTree(tree);
     DestroyTokenList(tokens);
 }