Add test cases.

Cargo.toml

@@ -16,4 +16,5 @@ members = [
 clap = "4.5.22"
 colored = "2.1.0"
 llvm-ir = { version = "0.11.1", features = ["llvm-17"] }
-spl_parser = { path = "src/parser" }
+spl_parser = { path = "src/parser" }
+spl_analyser = { path = "src/analyser" }

src/main.rs

@@ -1,6 +1,7 @@
 extern crate llvm_ir as llvm;
 
 use spl_parser::{parse_from_file};
+use spl_analyser::walker::Walker;
 use clap::{Arg, Command};
 use colored::Colorize;
 // use std::ffi::CString;
@@ -27,6 +28,13 @@ fn main() {
         }
     }
 
+    let mut walker = Walker::new(&source_path);
+    walker.traverse();
+    let errors = walker.get_errors();
+    for error in errors {
+        println!("{}", error.to_string().red());
+    }
+
     // unsafe {
     //     codegen(parsed_input);
     // }

src/parser/src/lib.rs

@@ -225,7 +225,7 @@ mod tests {
 
     #[test]
     fn test_0_r00() {
-        assert_parse_from_file(Parser::FuncDecParser, "../test/test_0_r00.spl","../test/test_0_r00.out");
+        assert_parse_from_file(Parser::FuncDecParser, "../test/mid/test_syntax_2.spl","../test/mid/test_syntax_2.out");
     }
 
     #[test]