[K/N][tests] Added some tests on multi-module file initialization

native/native.tests/testData/codegen/initializers/files/eagerInitialization/multiModule/global1.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+// MODULE: lib
+// FILE: lib.kt
+var z1 = false
+var z2 = false
+
+// MODULE: lib2(lib)
+// FILE: lib2.kt
+import kotlin.test.*
+
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+@EagerInitialization
+val x = foo()
+
+private fun foo(): Int {
+    z1 = true
+    return 42
+}
+
+// Will be initialized since [x]'s initializer calls a function from the file.
+val y = run { z2 = true; 117 }
+
+// MODULE: main(lib, lib2)
+// FILE: main.kt
+import kotlin.test.*
+
+fun box(): String {
+    assertTrue(z1)
+    assertTrue(z2)
+
+    return "OK"
+}

native/native.tests/testData/codegen/initializers/files/eagerInitialization/multiModule/global2.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+// MODULE: lib
+// FILE: lib.kt
+var z1 = false
+var z2 = false
+
+// MODULE: lib2(lib)
+// FILE: lib2.kt
+import kotlin.test.*
+
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+@EagerInitialization
+val x = run { z1 = true; 42 }
+
+// Won't be initialized (cause no function from the file will be called during [x] initialization).
+val y = run { z2 = true; 117 }
+
+// MODULE: main(lib, lib2)
+// FILE: main.kt
+import kotlin.test.*
+
+fun box(): String {
+    assertTrue(z1)
+    assertFalse(z2)
+
+    return "OK"
+}

native/native.tests/testData/codegen/initializers/files/eagerInitialization/multiModule/threadLocal1.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+// MODULE: lib
+// FILE: lib.kt
+@ThreadLocal
+var z1 = false
+var z2 = false
+@ThreadLocal
+var z3 = false
+
+// MODULE: lib2(lib)
+// FILE: lib2.kt
+import kotlin.test.*
+
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+@EagerInitialization
+@ThreadLocal
+val x = foo()
+
+private fun foo(): Int {
+    z1 = true
+    return 42
+}
+
+// Both will be initialized since [x]'s initializer calls a function from the file.
+val y1 = run { z2 = true; 117 }
+
+@ThreadLocal
+val y2 = run { z3 = true; 117 }
+
+// MODULE: main(lib, lib2)
+// FILE: main.kt
+import kotlin.test.*
+
+fun box(): String {
+    assertTrue(z1)
+    assertTrue(z2)
+    assertTrue(z3)
+
+    return "OK"
+}

native/native.tests/testData/codegen/initializers/files/eagerInitialization/multiModule/threadLocal2.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+// MODULE: lib
+// FILE: lib.kt
+@ThreadLocal
+var z1 = false
+var z2 = false
+@ThreadLocal
+var z3 = false
+
+// MODULE: lib2(lib)
+// FILE: lib2.kt
+import kotlin.test.*
+
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+@EagerInitialization
+@ThreadLocal
+val x = run { z1 = true; 42 }
+
+// Won't be initialized (cause no function from the file will be called during [x] initialization).
+val y1 = run { z2 = true; 117 }
+
+@ThreadLocal
+val y2 = run { z3 = true; 117 }
+
+// MODULE: main(lib, lib2)
+// FILE: main.kt
+import kotlin.test.*
+
+fun box(): String {
+    assertTrue(z1)
+    assertFalse(z2)
+    assertFalse(z3)
+
+    return "OK"
+}