[objc][codegen] Fixed bug with calling fake override interface methods

kotlin-native/backend.native/tests/objcexport/expectedLazy.h

@@ -1937,6 +1937,17 @@ __attribute__((swift_name("GH3825KotlinImpl")))
 - (BOOL)call2Callback:(void (^)(void))callback doThrow:(BOOL)doThrow error:(NSError * _Nullable * _Nullable)error __attribute__((swift_name("call2(callback:doThrow:)")));
 @end;
 
+__attribute__((swift_name("Foo_FakeOverrideInInterface")))
+@protocol KtFoo_FakeOverrideInInterface
+@required
+- (void)fooT:(id _Nullable)t __attribute__((swift_name("foo(t:)")));
+@end;
+
+__attribute__((swift_name("Bar_FakeOverrideInInterface")))
+@protocol KtBar_FakeOverrideInInterface <KtFoo_FakeOverrideInInterface>
+@required
+@end;
+
 @interface KtEnumeration (ValuesKt)
 - (KtEnumeration *)getAnswer __attribute__((swift_name("getAnswer()")));
 @end;
@@ -2088,6 +2099,7 @@ __attribute__((swift_name("ValuesKt")))
 + (KtMutableDictionary<KtULong *, KtLong *> *)mutULong2Long __attribute__((swift_name("mutULong2Long()")));
 + (KtMutableDictionary<KtFloat *, KtFloat *> *)mutFloat2Float __attribute__((swift_name("mutFloat2Float()")));
 + (KtMutableDictionary<KtDouble *, NSString *> *)mutDouble2String __attribute__((swift_name("mutDouble2String()")));
++ (void)callFoo_FakeOverrideInInterfaceObj:(id<KtBar_FakeOverrideInInterface>)obj __attribute__((swift_name("callFoo_FakeOverrideInInterface(obj:)")));
 @property (class, readonly) double dbl __attribute__((swift_name("dbl")));
 @property (class, readonly) float flt __attribute__((swift_name("flt")));
 @property (class, readonly) int32_t integer __attribute__((swift_name("integer")));

kotlin-native/backend.native/tests/objcexport/values.kt

@@ -1012,3 +1012,12 @@ fun mutULong2Long(): MutableMap<ULong, Long> = mutableMapOf(Pair(0x8000_0000_000
 fun mutFloat2Float(): MutableMap<Float, Float> = mutableMapOf(Pair(3.14f, 100f))
 fun mutDouble2String(): MutableMap<Double, String> = mutableMapOf(Pair(2.718281828459045, "2.718281828459045"))
 
+interface Foo_FakeOverrideInInterface<T> {
+    fun foo(t: T?)
+}
+
+interface Bar_FakeOverrideInInterface : Foo_FakeOverrideInInterface<String>
+
+fun callFoo_FakeOverrideInInterface(obj: Bar_FakeOverrideInInterface) {
+    obj.foo(null)
+}

kotlin-native/backend.native/tests/objcexport/values.swift

@@ -1318,6 +1318,14 @@ func testMapsExport() throws {
     try assertEquals(actual: (ValuesKt.mutDouble2String() as! [Double: String])[2.718281828459045], expected: "2.718281828459045")
 }
 
+class Baz_FakeOverrideInInterface : Bar_FakeOverrideInInterface {
+    func foo(t: Any?) {}
+}
+
+func testFakeOverrideInInterface() throws {
+    ValuesKt.callFoo_FakeOverrideInInterface(obj: Baz_FakeOverrideInInterface())
+}
+
 // -------- Execution of the test --------
 
 class ValuesTests : SimpleTestProvider {
@@ -1374,6 +1382,7 @@ class ValuesTests : SimpleTestProvider {
         test("TestStringConversion", testStringConversion)
         test("TestGH3825", testGH3825)
         test("TestMapsExport", testMapsExport)
+        test("TestFakeOverrideInInterface", testFakeOverrideInInterface)
 
         // Stress test, must remain the last one:
         test("TestGH2931", testGH2931)