kotlin-fork/compiler/testData/diagnostics/tests/dataFlowInfoTraversal/smartcasts/SmartcastAmbiguitites.fir.kt

interface B {
  fun bar() {}
}

class C() {
  fun bar() {
  }
}

fun test(a : Any?) {
  if (a is B) {
      if (<!USELESS_IS_CHECK!>a is C<!>) {
          a.bar();
      }
  }
}