#KT-3845 Fixed
Some seemingly irrelevant tests were changed because now there's <clinit> in almost every class and class initialization begins with executing it
Test data should be a Kotlin source file with zero or more comments e.g. of the form: '// 1 INVOKEVIRTUAL'. The test then checks that the generated bytecode for this file contains exactly one occurrence of the string 'INVOKEVIRTUAL'