[K/N][Tests] Split filecheck part from test direct.kt

^KT-61259

compiler/testData/codegen/box/cinterop/objc/direct.kt

@@ -1,6 +1,5 @@
 // TARGET_BACKEND: NATIVE
 // DISABLE_NATIVE: isAppleTarget=false
-// FILECHECK_STAGE: CStubs
 // LANGUAGE: +ImplicitSignedToUnsignedIntegerConversion
 
 // MODULE: cinterop
@@ -76,8 +75,6 @@ NS_ASSUME_NONNULL_END
 // MODULE: main(cinterop)
 // FILE: main.kt
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
-@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
-import kotlin.native.Retain
 import direct.*
 import kotlinx.cinterop.*
 import kotlin.test.*
@@ -124,25 +121,5 @@ fun box(): String {
         assertEquals(42UL, ccn .directExt(42UL))
     }
 
-    // FileCheck part
-    callDirect()
-    callRegular()
     return "OK"
 }
-
-@Retain
-//CHECK-LABEL: define i64 @"kfun:#callDirect(){}kotlin.ULong"()
-fun callDirect(): ULong {
-    val cc = CallingConventions()
-    //CHECK: invoke i64 @_{{[a-zA-Z0-9]+}}_knbridge{{[0-9]+}}(i8* %{{[0-9]+}}, i64 42)
-    return cc.direct(42uL)
-}
-
-@Retain
-//CHECK-LABEL: define i64 @"kfun:#callRegular(){}kotlin.ULong"()
-fun callRegular(): ULong {
-    val cc = CallingConventions()
-    //CHECK: invoke i64 @_{{[a-zA-Z0-9]+}}_knbridge{{[0-9]+}}(i8* %{{[0-9]+}}, i8* %{{[0-9]+}}, i64 42)
-    return cc.regular(42uL)
-}
-

compiler/testData/codegen/box/fileCheck/cinterop/direct.kt

@@ -0,0 +1,73 @@
+// TARGET_BACKEND: NATIVE
+// DISABLE_NATIVE: isAppleTarget=false
+// FILECHECK_STAGE: CStubs
+
+// MODULE: cinterop
+// FILE: direct.def
+language = Objective-C
+headers = direct.h
+headerFilter = direct.h
+
+// FILE: direct.h
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface CallingConventions : NSObject
+
++ (uint64_t)regular:(uint64_t)arg;
+- (uint64_t)regular:(uint64_t)arg;
+
++ (uint64_t)direct:(uint64_t)arg __attribute__((objc_direct));
+- (uint64_t)direct:(uint64_t)arg __attribute__((objc_direct));
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+// FILE: direct.m
+#import "direct.h"
+
+#define TEST_METHOD_IMPL(NAME) (uint64_t)NAME:(uint64_t)arg { return arg; }
+
+@implementation CallingConventions : NSObject
+
++ TEST_METHOD_IMPL(regular);
+- TEST_METHOD_IMPL(regular);
+
++ TEST_METHOD_IMPL(direct);
+- TEST_METHOD_IMPL(direct);
+
+@end
+
+
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+import kotlin.native.Retain
+import direct.*
+
+// KT-54610
+fun box(): String {
+    callDirect()
+    callRegular()
+    return "OK"
+}
+
+@Retain
+//CHECK-LABEL: define i64 @"kfun:#callDirect(){}kotlin.ULong"()
+fun callDirect(): ULong {
+    val cc = CallingConventions()
+    //CHECK: invoke i64 @_{{[a-zA-Z0-9]+}}_knbridge{{[0-9]+}}(i8* %{{[0-9]+}}, i64 42)
+    return cc.direct(42uL)
+}
+
+@Retain
+//CHECK-LABEL: define i64 @"kfun:#callRegular(){}kotlin.ULong"()
+fun callRegular(): ULong {
+    val cc = CallingConventions()
+    //CHECK: invoke i64 @_{{[a-zA-Z0-9]+}}_knbridge{{[0-9]+}}(i8* %{{[0-9]+}}, i8* %{{[0-9]+}}, i64 42)
+    return cc.regular(42uL)
+}