Configuration: move scratch tests to separate module

idea/scripting-support/testData/scratch/klass.comp.after

@@ -0,0 +1,16 @@
+// REPL_MODE: false
+
+class MyClass {                    // RESULT: class MyClass
+    fun foo() = 1
+}
+
+MyClass().foo()                    // RESULT: 1
+
+interface I {                      // RESULT: interface I
+    fun foo(): Int
+}
+
+val i = object: I {                // RESULT: val i: Klass.I
+    override fun foo(): Int = 1
+}
+i.foo()                            // RESULT: 1