[K/N][Tests] Patch package names also for .def files

To separate interop modules to different packages,
.def files should be treated similarly to .kt files:
1) package directive should be prepended with test-specific synthetic package,
or, if, absent, package directive with synthetic package should be added.
2) in .kt files, import directives and fully-qualified import from interop modules
should be prepended with same test-specific synthetic package.

compiler/testData/codegen/box/cinterop/basics/3.kt

@@ -4,14 +4,14 @@
  */
 // TARGET_BACKEND: NATIVE
 // MODULE: cinterop
-// FILE: cstdlib_3.def
+// FILE: cstdlib.def
 headers = stdlib.h
 
 // MODULE: main(cinterop)
 // FILE: main.kt
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
 
-import cstdlib_3.*
+import cstdlib.*
 import kotlinx.cinterop.*
 import kotlin.test.*
 

compiler/testData/codegen/box/cinterop/packages/dotFnameNested1.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: part1.part2.def
+package package1
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import package1.*
+
+fun box(): String = OK_STRING

compiler/testData/codegen/box/cinterop/packages/dotFnameNested2.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: filename1.filename2.def
+package package1.package2
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import package1.package2.*
+
+fun box(): String = OK_STRING

compiler/testData/codegen/box/cinterop/packages/dotFnameRoot.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: root1.root2.def
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import root2.root1.*
+
+fun box(): String = OK_STRING

compiler/testData/codegen/box/cinterop/packages/nested1.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: packages.def
+package package1
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import package1.*
+
+fun box(): String = OK_STRING

compiler/testData/codegen/box/cinterop/packages/nested2.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: packages.def
+package package1.package2
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import package1.package2.*
+
+fun box(): String = OK_STRING

compiler/testData/codegen/box/cinterop/packages/root.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: root1.def
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import root1.*
+
+fun box(): String = OK_STRING