JS: prohibit is checks against native interfaces. Warn about casts to native interfaces. Fix #KT-14037, fix #KT-14038

compiler/testData/diagnostics/testsWithJsStdLib/native/rtti/castToNativeInterface.kt

@@ -0,0 +1,5 @@
+@native interface I
+
+fun box(a: Any, b: Any): Pair<I, I?> {
+    return Pair(<!UNCHECKED_CAST_TO_NATIVE_INTERFACE!>a as I<!>, <!UNCHECKED_CAST_TO_NATIVE_INTERFACE!>b as? I<!>)
+}

compiler/testData/diagnostics/testsWithJsStdLib/native/rtti/castToNativeInterface.txt

@@ -0,0 +1,9 @@
+package
+
+public fun box(/*0*/ a: kotlin.Any, /*1*/ b: kotlin.Any): kotlin.Pair<I, I?>
+
+@kotlin.js.native() public interface I {
+    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/testsWithJsStdLib/native/rtti/checkForNativeInterface.kt

@@ -0,0 +1,5 @@
+@native interface I
+
+fun box(a: Any, b: Any): Boolean {
+    return <!CANNOT_CHECK_FOR_NATIVE_INTERFACE!>a is I<!> && <!CANNOT_CHECK_FOR_NATIVE_INTERFACE!>b !is I<!>
+}

compiler/testData/diagnostics/testsWithJsStdLib/native/rtti/checkForNativeInterface.txt

@@ -0,0 +1,9 @@
+package
+
+public fun box(/*0*/ a: kotlin.Any, /*1*/ b: kotlin.Any): kotlin.Boolean
+
+@kotlin.js.native() public interface I {
+    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/testsWithJsStdLib/native/rtti/whenIsNativeInterface.kt

@@ -0,0 +1,9 @@
+@native interface I
+
+@native interface J
+
+fun box(a: Any) = when (a) {
+    <!CANNOT_CHECK_FOR_NATIVE_INTERFACE!>is I<!> -> 0
+    <!CANNOT_CHECK_FOR_NATIVE_INTERFACE!>!is J<!> -> 1
+    else -> 2
+}

compiler/testData/diagnostics/testsWithJsStdLib/native/rtti/whenIsNativeInterface.txt

@@ -0,0 +1,15 @@
+package
+
+public fun box(/*0*/ a: kotlin.Any): kotlin.Int
+
+@kotlin.js.native() public interface I {
+    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
+}
+
+@kotlin.js.native() public interface J {
+    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
+}