Refactor debugger tests

1. Move tests to their own module
2. Avoid sharing the 'tinyApp' project between tests
3. Clean up option directive handling

idea/jvm-debugger/jvm-debugger-test/testData/stepping/stepIntoAndSmartStepInto/javaFun.kt

@@ -1,3 +1,4 @@
+// FILE: javaFun.kt
 package javaFun
 
 import forTests.MyJavaClass
@@ -7,3 +8,17 @@ fun main(args: Array<String>) {
     //Breakpoint!
     klass.testFun()
 }
+
+// FILE: forTests/MyJavaClass.java
+package forTests;
+
+import org.jetbrains.annotations.NotNull;
+import java.util.List;
+
+public class MyJavaClass {
+    public void testFun() {
+        int i = 1;
+    }
+
+    public MyJavaClass() {}
+}