feat: better test for params_count.rs

Author: Wybxc

tests/codegen/params_count.rs

@@ -6,9 +6,13 @@
 
 extern crate mini_core;
 
+// CHECK-LABEL: foo
+// CHECK-LABEL: main
+
 // expect three int params
 // CHECK-LABEL: foo
-// CHECK: {{((int32_t .*,?\s?){3})}}
+// CHECK: (int32_t {{[a-zA-Z_][a-zA-Z0-9_]*}}, int32_t {{[a-zA-Z_][a-zA-Z0-9_]*}}, int32_t {{[a-zA-Z_][a-zA-Z0-9_]*}})
+// CHECK: return 0;
 #[no_mangle]
 pub fn foo(_x: i32, _y: i32, _z: i32) -> i32 {
     0