Move rc! macro to util

So it can be used anywhere

schala-lang/language/src/lib.rs

@@ -30,8 +30,10 @@ macro_rules! bx {
 }
 
 #[macro_use]
-mod typechecking;
 mod util;
+#[macro_use]
+mod typechecking;
+
 mod tokenizing;
 mod ast;
 mod parsing;

schala-lang/language/src/parsing.rs

@@ -1138,9 +1138,6 @@ mod parse_tests {
     parser.parse()
   }
 
-  macro_rules! rc {
-    ($string:tt) => { Rc::new(stringify!($string).to_string()) }
-  }
   macro_rules! parse_test {
     ($string:expr, $correct:expr) => { assert_eq!(parse($string).unwrap(), $correct) };
   }

schala-lang/language/src/symbol_table.rs

@@ -202,7 +202,7 @@ mod symbol_table_tests {
 
   #[test]
   fn basic_symbol_table() {
-    values_in_table! { "let a = 10; fn b() { 20 }", &Rc::new("b".to_string()) };
+    values_in_table! { "let a = 10; fn b() { 20 }", &rc!(b) };
   }
 }
 

schala-lang/language/src/util.rs

@@ -47,3 +47,7 @@ pub fn quick_ast(input: &str) -> crate::ast::AST {
   let mut parser = crate::parsing::Parser::new(tokens);
   parser.parse().unwrap()
 }
+
+macro_rules! rc {
+  ($string:tt) => { Rc::new(stringify!($string).to_string()) }
+}