Restructure "Safe Delete" test data directories

Conflicts:
	generators/org/jetbrains/jet/generators/tests/GenerateTests.java

idea/testData/safeDelete/deleteProperty/javaPropertyWithKotlin/middleJava6.java

@@ -0,0 +1,11 @@
+class C implements B {
+    @Override
+    public String getFoo() {
+        return "C";
+    }
+
+    @Override
+    public void <caret>setFoo(String value) {
+
+    }
+}