K1/K2: add test cases for KT-53792 and KT-66369

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/dnnTypeProjectionInParameter.fir.kt

@@ -0,0 +1,30 @@
+// ISSUE: KT-53792, KT-66369
+
+class MyBoxInv<T : String?>(val value: T)
+
+fun <T : String?> getSizeInv(box: MyBoxInv<T & Any>) = box.value.length
+
+class MyBoxOut<out T : String?>(val value: T)
+
+fun <T : String?> getSizeOut(box: MyBoxOut<T & Any>) = box.value.length
+
+class MyBoxIn<in T : String?> {
+    fun foo(arg: T) {
+        arg.toString()
+    }
+}
+
+fun <T : String?> foo(box: MyBoxIn<T & Any>, arg: T) {
+    box.foo(<!ARGUMENT_TYPE_MISMATCH!>arg<!>)
+}
+
+fun main() {
+    val emptyBoxInv = MyBoxInv<String?>(null)
+    getSizeInv(<!ARGUMENT_TYPE_MISMATCH!>emptyBoxInv<!>)
+
+    val emptyBoxOut = MyBoxOut<String?>(null)
+    getSizeOut(<!ARGUMENT_TYPE_MISMATCH!>emptyBoxOut<!>)
+
+    val emptyBoxIn = MyBoxIn<String?>()
+    foo(emptyBoxIn, null)
+}

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/dnnTypeProjectionInParameter.kt

@@ -0,0 +1,30 @@
+// ISSUE: KT-53792, KT-66369
+
+class MyBoxInv<T : String?>(val value: T)
+
+fun <T : String?> getSizeInv(box: MyBoxInv<T & Any>) = box.value.length
+
+class MyBoxOut<out T : String?>(val value: T)
+
+fun <T : String?> getSizeOut(box: MyBoxOut<T & Any>) = box.value.length
+
+class MyBoxIn<in T : String?> {
+    fun foo(arg: T) {
+        arg.toString()
+    }
+}
+
+fun <T : String?> foo(box: MyBoxIn<T & Any>, arg: T) {
+    box.foo(<!TYPE_MISMATCH!>arg<!>)
+}
+
+fun main() {
+    val emptyBoxInv = MyBoxInv<String?>(null)
+    getSizeInv(<!TYPE_MISMATCH!>emptyBoxInv<!>)
+
+    val emptyBoxOut = MyBoxOut<String?>(null)
+    getSizeOut(<!TYPE_MISMATCH!>emptyBoxOut<!>)
+
+    val emptyBoxIn = MyBoxIn<String?>()
+    foo(emptyBoxIn, null)
+}

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/dnnTypeProjectionInReceiver.fir.kt

@@ -0,0 +1,30 @@
+// ISSUE: KT-53792, KT-66369
+
+class MyBoxInv<T : String?>(val value: T)
+
+fun <T : String?> MyBoxInv<T & Any>.getSizeInv() = value.length
+
+class MyBoxOut<out T : String?>(val value: T)
+
+fun <T : String?> MyBoxOut<T & Any>.getSizeOut() = value.length
+
+class MyBoxIn<in T : String?> {
+    fun foo(arg: T) {
+        arg.toString()
+    }
+}
+
+fun <T : String?> MyBoxIn<T & Any>.fooExt(arg: T) {
+    foo(<!ARGUMENT_TYPE_MISMATCH!>arg<!>)
+}
+
+fun main() {
+    val emptyBoxInv = MyBoxInv<String?>(null)
+    emptyBoxInv.<!UNRESOLVED_REFERENCE_WRONG_RECEIVER!>getSizeInv<!>()
+
+    val emptyBoxOut = MyBoxOut<String?>(null)
+    emptyBoxOut.<!UNRESOLVED_REFERENCE_WRONG_RECEIVER!>getSizeOut<!>()
+
+    val emptyBoxIn = MyBoxIn<String?>()
+    emptyBoxIn.fooExt(null)
+}

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/dnnTypeProjectionInReceiver.kt

@@ -0,0 +1,30 @@
+// ISSUE: KT-53792, KT-66369
+
+class MyBoxInv<T : String?>(val value: T)
+
+fun <T : String?> MyBoxInv<T & Any>.getSizeInv() = value.length
+
+class MyBoxOut<out T : String?>(val value: T)
+
+fun <T : String?> MyBoxOut<T & Any>.getSizeOut() = value.length
+
+class MyBoxIn<in T : String?> {
+    fun foo(arg: T) {
+        arg.toString()
+    }
+}
+
+fun <T : String?> MyBoxIn<T & Any>.fooExt(arg: T) {
+    foo(<!TYPE_MISMATCH!>arg<!>)
+}
+
+fun main() {
+    val emptyBoxInv = MyBoxInv<String?>(null)
+    emptyBoxInv.getSizeInv()
+
+    val emptyBoxOut = MyBoxOut<String?>(null)
+    emptyBoxOut.getSizeOut()
+
+    val emptyBoxIn = MyBoxIn<String?>()
+    emptyBoxIn.fooExt(null)
+}