Move dust tests to examples

tests/dust_examples.rs

@@ -4,42 +4,42 @@ use dust_lib::*;
 
 #[test]
 fn collections() {
-    let file_contents = read_to_string("tests/collections.ds").unwrap();
+    let file_contents = read_to_string("examples/collections.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }
 
 #[test]
 fn list() {
-    let file_contents = read_to_string("tests/list.ds").unwrap();
+    let file_contents = read_to_string("examples/list.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }
 
 #[test]
 fn table() {
-    let file_contents = read_to_string("tests/table.ds").unwrap();
+    let file_contents = read_to_string("examples/table.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }
 
 #[test]
 fn variables() {
-    let file_contents = read_to_string("tests/variables.ds").unwrap();
+    let file_contents = read_to_string("examples/variables.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }
 
 #[test]
 fn scope() {
-    let file_contents = read_to_string("tests/scope.ds").unwrap();
+    let file_contents = read_to_string("examples/scope.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }
 
 #[test]
 fn data_formats() {
-    let file_contents = read_to_string("tests/data_formats.ds").unwrap();
+    let file_contents = read_to_string("examples/data_formats.ds").unwrap();
 
     eval(&file_contents).unwrap();
 }