-- Common --
Exit code: OK
Output:

-- JVM --
Exit code: COMPILATION_ERROR
Output:
compiler/testData/multiplatform/missingOverload/common.kt:7:1: error: 'header' function 'g' has no implementation in module
The following declaration is incompatible because parameter types are different:
    public impl fun g(a: Any): Unit

header fun g(s: String)
^
compiler/testData/multiplatform/missingOverload/jvm.kt:1:12: error: 'impl' class 'Foo' has no implementation of 'header' class members:

    public final header fun f(a: Any): Unit

    The following declaration is incompatible because parameter types are different:
        public final impl fun f(s: String): Unit

impl class Foo {
           ^