K2 Scripting: restore some codegen scripting tests for K2

compiler/testData/codegen/box/script/classReference.kt

@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 // IGNORE_BACKEND_K2: JVM_IR, JS_IR, JS_IR_ES6
-// FIR status: scripts aren't supported yet
+// FIR status: script declarations are not visible from other sources
 // IGNORE_LIGHT_ANALYSIS
 // WITH_STDLIB
 // FILE: test.kt

compiler/testData/codegen/box/script/localCaptureTests.kt

@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 // IGNORE_BACKEND_K2: JVM_IR, JS_IR, JS_IR_ES6
-// FIR status: scripts aren't supported yet
+// FIR status: script declarations are not visible from other sources
 // IGNORE_LIGHT_ANALYSIS
 // WITH_STDLIB
 // FILE: test.kt

compiler/testData/codegen/box/script/localCaptureTestsK2.kt

@@ -0,0 +1,31 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS_IR, JS_IR_ES6
+// IGNORE_LIGHT_ANALYSIS
+// WITH_STDLIB
+// FILE: test.kt
+
+fun box(): String =
+    Build.Debug.run { "${c0()}${c1()}" }
+
+// FILE: script.kts
+
+interface Base {
+    val v: String
+
+    fun c0(): Char {
+        fun getC0() = v[0]
+        return getC0()
+    }
+}
+
+enum class Build(override val v: String): Base {
+    Debug("OK"),
+    Release("NO");
+
+    fun c1(): Char {
+        val g = object {
+            val c1 = v[1]
+        }
+        return g.c1
+    }
+}

compiler/testData/codegen/box/script/scripInstance.kt

@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 // IGNORE_BACKEND_K2: JVM_IR, JS_IR, JS_IR_ES6
-// FIR status: scripts aren't supported yet
+// FIR status: script declarations are not visible from other sources
 // IGNORE_LIGHT_ANALYSIS
 // WITH_STDLIB
 // FILE: test.kt

compiler/testData/codegen/box/script/scriptNestedClassInstance.kt

@@ -1,6 +1,6 @@
 // TARGET_BACKEND: JVM
 // IGNORE_BACKEND_K2: JVM_IR, JS_IR, JS_IR_ES6
-// FIR status: scripts aren't supported yet
+// FIR status: script declarations are not visible from other sources
 // IGNORE_LIGHT_ANALYSIS
 // WITH_STDLIB
 // FILE: test.kt

compiler/testData/codegen/box/script/scriptNestedClassInstanceK2.kt

@@ -0,0 +1,14 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS_IR, JS_IR_ES6
+// IGNORE_LIGHT_ANALYSIS
+// WITH_STDLIB
+// FILE: test.kt
+
+fun box(): String =
+    Nested().x
+
+// FILE: script.kts
+
+class Nested {
+    val x = "OK"
+}

compiler/testData/codegen/box/script/scriptPropFromAnotherModuleK2.kt

@@ -0,0 +1,28 @@
+// TARGET_BACKEND: JVM_IR
+// IGNORE_BACKEND_K1: JS_IR, JS_IR_ES6
+// IGNORE_LIGHT_ANALYSIS
+// !LANGUAGE: -SkipStandaloneScriptsInSourceRoots
+// WITH_STDLIB
+
+// Although this test works in K1 just fine, it is named with the suffix K2 to show that the demonstrated method is the only one
+// available so far to call a script from another module.
+// In K1 one can do it directly, but this is not the functionality we want to retain
+
+// MODULE: lib
+// FILE: script.kts
+
+fun ok() = "OK"
+
+// MODULE: main(lib)
+// FILE: test.kt
+
+fun runScriptMethod(name: String, method: String): Any {
+    val klass = Thread.currentThread().contextClassLoader.loadClass(name)
+    val constructor = klass.constructors.single()
+    val instance = constructor.newInstance(emptyArray<String>())
+    val method = klass.getMethod(method)
+    return method.invoke(instance)
+}
+
+fun box(): String =
+    runScriptMethod("Script", "ok") as String