parse tweaks

examples/basic/function0002.ngr

@@ -1,7 +1,7 @@
 x = 1;
 function add_x(y) x + y;
 a = 3;
-function add_x_twice(y) add_x(y) + x
+function add_x_twice(y) add_x(y) + x;
 print x;
 result = add_x(a);
 print x;

examples/basic/function0003.ngr

@@ -2,7 +2,7 @@ x = 1u64;
 function mean_x(y) {
     base = x + y;
     result = base / 2;
-    result;
+    result
 };
 a = 3;
 mean_x_and_a = mean_x(a);