Implemented tests

mist-test/src/items/attribute_test.mist

@@ -1,3 +1,5 @@
+pub module attribute_test;
+
 #[derive(Debug)]
 pub struct Debuggable {
     value i32,

mist-test/src/items/class_test.mist

@@ -1,3 +1,5 @@
+pub module class_test;
+
 pub class Animal<T> {
     pub name String;
     pub val T;

mist-test/src/items/enum_test.mist

@@ -1,3 +1,5 @@
+pub module enum_test;
+
 enum OptionInt {
     None,
     Some[i32],

mist-test/src/items/function_test.mist

@@ -1,3 +1,5 @@
+pub module function_test;
+
 fn greet() {
     let mut x = 1;
     x++;

mist-test/src/items/impl_test.mist

@@ -1,3 +1,5 @@
+pub module impl_test;
+
 struct Vector2 {
     x i32,
     y i32,

mist-test/src/items/struct_test.mist

@@ -1,3 +1,5 @@
+pub module struct_test;
+
 struct Point {
     x i32,
     y i32,

mist-test/src/items/trait_test.mist

@@ -1,3 +1,5 @@
+pub module trait_test;
+
 trait Speak {
     fn speak(*self) String;
 }