[ObjCExport] Add failing member function signature order test

KT-66066

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/translationOrder.kt

@@ -19,7 +19,13 @@ internal val StableFunctionOrder: Comparator<KtFunctionSymbol>
         { it.isConstructor },
         { it.name },
         { it.valueParameters.size },
-        // TODO NOW! { KonanManglerDesc.run { it.signatureString(false) } }
+        /**
+         * Signature order should be added
+         *
+         * See KT-66066
+         * [org.jetbrains.kotlin.backend.konan.objcexport.ObjCExportTranslatorKt.makeMethodsOrderStable]
+         * { KonanManglerDesc.run { it.signatureString(false) } }
+         */
     )
 
 internal val StableClassifierOrder: Comparator<KtClassifierSymbol> =

native/objcexport-header-generator/test/org/jetbrains/kotlin/backend/konan/tests/ObjCExportHeaderGeneratorTest.kt

@@ -312,6 +312,15 @@ class ObjCExportHeaderGeneratorTest(private val generator: HeaderGenerator) {
         doTest(headersTestDataDir.resolve("vararg"))
     }
 
+    /**
+     * KT-66066
+     */
+    @Test
+    @TodoAnalysisApi
+    fun `test - member function signature order`() {
+        doTest(headersTestDataDir.resolve("memberFunctionSignatureOrder"))
+    }
+
     private fun doTest(root: File, configuration: Configuration = Configuration()) {
         if (!root.isDirectory) fail("Expected ${root.absolutePath} to be directory")
         val generatedHeaders = generator.generateHeaders(root, configuration).toString()

native/objcexport-header-generator/testData/headers/memberFunctionSignatureOrder/!memberFunctionSignatureOrder.h

@@ -0,0 +1,31 @@
+#import <Foundation/NSArray.h>
+#import <Foundation/NSDictionary.h>
+#import <Foundation/NSError.h>
+#import <Foundation/NSObject.h>
+#import <Foundation/NSSet.h>
+#import <Foundation/NSString.h>
+#import <Foundation/NSValue.h>
+
+NS_ASSUME_NONNULL_BEGIN
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-warning-option"
+#pragma clang diagnostic ignored "-Wincompatible-property-type"
+#pragma clang diagnostic ignored "-Wnullability"
+
+#pragma push_macro("_Nullable_result")
+#if !__has_feature(nullability_nullable_result)
+#undef _Nullable_result
+#define _Nullable_result _Nullable
+#endif
+
+__attribute__((objc_subclassing_restricted))
+@interface Foo : Base
+- (instancetype)init __attribute__((swift_name("init()"))) __attribute__((objc_designated_initializer));
++ (instancetype)new __attribute__((availability(swift, unavailable, message="use object initializers instead")));
+- (void)fooA:(NSString *)a b:(int32_t)b __attribute__((swift_name("foo(a:b:)")));
+- (void)fooB:(NSString *)b a:(NSString *)a __attribute__((swift_name("foo(b:a:)")));
+@end
+
+#pragma pop_macro("_Nullable_result")
+#pragma clang diagnostic pop
+NS_ASSUME_NONNULL_END

native/objcexport-header-generator/testData/headers/memberFunctionSignatureOrder/Foo.kt

@@ -0,0 +1,4 @@
+class Foo {
+    fun foo(b: String, a: String) = Unit
+    fun foo(a: String, b: Int) = Unit
+}