Refactor: Move tester module to utils

src/main.rs

@@ -231,7 +231,7 @@ impl CompilerApp {
     }
 
     fn run_all_tests(&mut self) {
-        use myc::ast::tester;
+        use myc::utils::tester;
         let results = tester::run_functional_tests();
         let mut log = String::from("FUNCTIONAL TEST RESULTS:\n\n");
         let mut passed = 0;
@@ -244,7 +244,7 @@ impl CompilerApp {
     }
 
     fn run_benchmarks(&mut self, update: bool) {
-        use myc::ast::tester;
+        use myc::utils::tester;
         if cfg!(debug_assertions) && !update {
             self.output_log = String::from("⚠️ WARNING: Benchmarks in Debug mode are inaccurate!\nUse Release build for real measurements.\n\n");
         } else {