Added another test to ensure all 3 tuple scenerios are covered

.github/copilot-instructions.md

@@ -83,7 +83,7 @@ cargo test --package compiler --lib -- test::tuple_literals::test::test_tuple_li
 ```bash
 cd rust_compiler
 # Compile Slang code to IC10 using current compiler changes
-echo 'let x = 5;' | cargo run --bin slang --
+echo 'let x = 5;' | cargo run --bin slang
 # Or from file
 cargo run --bin slang -- input.slang -o output.ic10
 # Optimize the output with -z flag