[fine] Type checking bones

fine/tests/example_tests.rs

@@ -1,4 +1,5 @@
 use fine::parser::SyntaxTree;
+use fine::tokens::Lines;
 use pretty_assertions::assert_eq;
 
 fn rebase_concrete(source_path: &str, dump: &str) {
@@ -83,4 +84,13 @@ fn assert_concrete(tree: &SyntaxTree, expected: &str, source_path: &str) {
     }
 }
 
+fn assert_type_at(
+    _tree: &SyntaxTree,
+    _lines: &Lines,
+    _pos: usize,
+    _expected: &str,
+    _source_path: &str,
+) {
+}
+
 include!(concat!(env!("OUT_DIR"), "/generated_tests.rs"));

fine/tests/expression/number.fine

@@ -5,4 +5,5 @@
 // |       Number:'"42"'
 // |     Semicolon:'";"'
 //
+// type: 138 Number
 42;