Tests: extract scripts testdata for light classes in ide to separate test

For compiled scripts there is AbstractIdeCompiledLightClassTest
For now there is a difference in light classes constructed from source and from compiled class (missing baseClass and constructor parameter for script class)
But it doesn't affect users because calling script class from Java isn't supported yet

testData for AbstractIdeLightClassTest and AbstractIdeLightClassForScriptTest can be merged when the difference will be fixed

compiler/testData/asJava/script/ide/HelloWorld.java

@@ -0,0 +1,5 @@
+public class HelloWorld {
+    public static final void main(java.lang.String[] p) { /* compiled code */ }
+
+    public HelloWorld() { /* compiled code */ }
+}