-- Common --
Exit code: OK
Output:

-- JVM --
Exit code: OK
Output:
compiler/testData/multiplatform/optionalExpectation/common.kt:5:1: warning: 'expect'/'actual' classes (including interfaces, objects, annotations, enums, and 'actual' typealiases) are in Beta. You can use -Xexpect-actual-classes flag to suppress this warning. Also see: https://youtrack.jetbrains.com/issue/KT-61573
expect annotation class A()
^^^^^^
compiler/testData/multiplatform/optionalExpectation/jvm.kt:1:1: warning: 'expect'/'actual' classes (including interfaces, objects, annotations, enums, and 'actual' typealiases) are in Beta. You can use -Xexpect-actual-classes flag to suppress this warning. Also see: https://youtrack.jetbrains.com/issue/KT-61573
actual annotation class A
^^^^^^

-- JS --
Exit code: OK
Output:
compiler/testData/multiplatform/optionalExpectation/common.kt:5:1: warning: 'expect'/'actual' classes (including interfaces, objects, annotations, enums, and 'actual' typealiases) are in Beta. You can use -Xexpect-actual-classes flag to suppress this warning. Also see: https://youtrack.jetbrains.com/issue/KT-61573
expect annotation class A()
^^^^^^