Force the user of AstAccessControl to write at least one test violating restriction, implement such tests for existing tests

This is needed because the slightest change in the test setup can make the check useless without the client knowing
The solution is ugly but gives at least some protection against this

compiler/testData/loadJava/compiledJavaCompareWithKotlin/ClassWithConstVal.kt

@@ -1,4 +1,3 @@
-// ALLOW_AST_ACCESS
 package test
 
 public class ClassWithConstVal() : java.lang.Object() {