[FE] Support intersection type emptiness checking for interfaces

compiler/testData/diagnostics/tests/inference/builderInference/stubTypes/intersect.kt

@@ -38,10 +38,10 @@ fun test() {
 
         build2 {
             emit(1)
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!><!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>intersect<!>(this@build.getIn(), getIn())<!>
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!><!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>intersect<!>(getIn(), Test.foo(this@build.getIn()))<!>
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!><!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>intersect<!>(Test.foo(this@build.getIn()), Test.foo(getIn()))<!>
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!><!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>intersect<!>(Test.foo(getIn()), this@build.getIn())<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>intersect(<!TYPE_MISMATCH!>this@build.getIn()<!>, getIn())<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>intersect(<!TYPE_MISMATCH!>getIn()<!>, Test.foo(this@build.getIn()))<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>intersect(<!TYPE_MISMATCH!>Test.foo(this@build.getIn())<!>, Test.foo(getIn()))<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>intersect(<!TYPE_MISMATCH!>Test.foo(getIn())<!>, this@build.getIn())<!>
             ""
         }
         ""

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_29.fir.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Inv<P>
+
+interface A
+interface B
+
+fun <K : Inv<A>> main() {
+    val foo = Foo<K>()
+    Bar<Inv<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_29.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Inv<P>
+
+interface A
+interface B
+
+fun <K : Inv<A>> main() {
+    val foo = Foo<K>()
+    Bar<Inv<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_29.txt

@@ -0,0 +1,37 @@
+package
+
+public fun </*0*/ K : Inv<A>> main(): kotlin.Unit
+
+public interface A {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface B {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Inv</*0*/ P> {
+    public constructor Inv</*0*/ P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_30.fir.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B<K> : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B<String>>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_30.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B<K> : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B<String>>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_30.txt

@@ -0,0 +1,37 @@
+package
+
+public fun </*0*/ K : Out<A<kotlin.String>>> main(): kotlin.Unit
+
+public interface A</*0*/ K> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface B</*0*/ K> : A<kotlin.Int> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out P> {
+    public constructor Out</*0*/ out P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_31.fir.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_31.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_31.txt

@@ -0,0 +1,37 @@
+package
+
+public fun </*0*/ K : Out<A<kotlin.String>>> main(): kotlin.Unit
+
+public interface A</*0*/ K> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface B : A<kotlin.Int> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out P> {
+    public constructor Out</*0*/ out P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_32.fir.kt

@@ -0,0 +1,16 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B : A<Int>
+interface C : A<String>
+
+fun <K : Out<C>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_32.kt

@@ -0,0 +1,16 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+interface B : A<Int>
+interface C : A<String>
+
+fun <K : Out<C>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_32.txt

@@ -0,0 +1,43 @@
+package
+
+public fun </*0*/ K : Out<C>> main(): kotlin.Unit
+
+public interface A</*0*/ K> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface B : A<kotlin.Int> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface C : A<kotlin.String> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out P> {
+    public constructor Out</*0*/ out P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_33.fir.kt

@@ -0,0 +1,16 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+class B : A<Int>
+class C : A<String>
+
+fun <K : <!FINAL_UPPER_BOUND!>Out<C><!>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_33.kt

@@ -0,0 +1,16 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+class B : A<Int>
+class C : A<String>
+
+fun <K : <!FINAL_UPPER_BOUND!>Out<C><!>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_33.txt

@@ -0,0 +1,45 @@
+package
+
+public fun </*0*/ K : Out<C>> main(): kotlin.Unit
+
+public interface A</*0*/ K> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class B : A<kotlin.Int> {
+    public constructor B()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class C : A<kotlin.String> {
+    public constructor C()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out P> {
+    public constructor Out</*0*/ out P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_34.fir.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+class B : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_34.kt

@@ -0,0 +1,15 @@
+class Foo<T>
+
+class Bar<T> {
+    fun <S : T> takeFoo(foo: Foo<in S>) {}
+}
+
+class Out<out P>
+
+interface A<K>
+class B : A<Int>
+
+fun <K : Out<A<String>>> main() {
+    val foo = Foo<K>()
+    Bar<Out<B>>().<!INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_WARNING!>takeFoo<!>(foo) // error in 1.3.72, no error in 1.4.31
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt45461_34.txt

@@ -0,0 +1,38 @@
+package
+
+public fun </*0*/ K : Out<A<kotlin.String>>> main(): kotlin.Unit
+
+public interface A</*0*/ K> {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class B : A<kotlin.Int> {
+    public constructor B()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Bar</*0*/ T> {
+    public constructor Bar</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final fun </*0*/ S : T> takeFoo(/*0*/ foo: Foo<in S>): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Foo</*0*/ T> {
+    public constructor Foo</*0*/ T>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out P> {
+    public constructor Out</*0*/ out P>()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt51016.fir.kt

@@ -1,11 +0,0 @@
-interface A<T>
-interface B<T> : A<T>
-
-fun <T : Comparable<T>, S : T?> B<in S>.foo(t: T) {}
-fun <T : Comparable<T>, S : T?> A<in S>.foo(other: A<in S>) {}
-
-interface C<T> : B<T>, Comparable<C<*>>
-
-fun test(x: C<Long?>) {
-    x.foo(x)  // OVERLOAD_RESOLUTION_AMBIGUITY, shoub be OK
-}

compiler/testData/diagnostics/tests/inference/emptyIntersectionTypes/kt51016.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 interface A<T>
 interface B<T> : A<T>
 
@@ -7,5 +8,5 @@ fun <T : Comparable<T>, S : T?> A<in S>.foo(other: A<in S>) {}
 interface C<T> : B<T>, Comparable<C<*>>
 
 fun test(x: C<Long?>) {
-    x.<!OVERLOAD_RESOLUTION_AMBIGUITY!>foo<!>(x)  // OVERLOAD_RESOLUTION_AMBIGUITY, shoub be OK
+    x.foo(x)  // OVERLOAD_RESOLUTION_AMBIGUITY, shoub be OK
 }