Trivial isoltest updates: missing // ---- at the end

test/libsolidity/syntaxTests/imports/complex_import.sol

@@ -3,3 +3,4 @@ contract A {} contract B {} contract C { struct S { uint a; } }
 ==== Source: b ====
 import "a" as x; import {B as b, C as c, C} from "a";
 contract D is b { function f(c.S memory var1, x.C.S memory var2, C.S memory var3) internal {} }
+// ----