Changing debug test to correspond current changes.

Author: ppisl

graalpython/com.oracle.graal.python.test/src/com/oracle/graal/python/test/debug/PythonDebugTest.java

@@ -370,7 +370,7 @@ public void testGettersSetters() throws Throwable {
             expectSuspended((SuspendedEvent event) -> {
                 DebugStackFrame frame = event.getTopStackFrame();
                 assertEquals(1, frame.getSourceSection().getStartLine());
-                event.prepareStepOver(7);
+                event.prepareStepOver(2);
             });
             expectSuspended((SuspendedEvent event) -> {
                 DebugStackFrame frame = event.getTopStackFrame();