compiler/testData/diagnostics/tests/scopes/stopResolutionOnAmbiguity.kt

package c

interface B {
    fun bar() {}
}

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

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

fun Any?.bar() {}