Move blackBoxFile() testData to box/ directory

Delete all test methods (and empty test classes), since they'll be
auto-generated

compiler/tests/org/jetbrains/jet/codegen/NamespaceGenTest.java

@@ -435,24 +435,12 @@ public class NamespaceGenTest extends CodegenTestCase {
         assertEquals('x', ((Character) main.invoke(null, sb)).charValue());
     }
 
-    public void testNamespaceQualifiedMethod() throws Exception {
-        blackBoxFile("namespaceQualifiedMethod.kt");
-    }
-
-    public void testCheckCast() throws Exception {
-        blackBoxFile("checkCast.kt");
-    }
-
     public void testPutBooleanAsVoid() throws Exception {
         loadText("class C(val x: Int) { { x > 0 } } fun box() { val c = C(0) } ");
         final Method main = generateFunction();
         main.invoke(null);  // must not fail
     }
 
-    public void testIncrementProperty() throws Exception {
-        blackBoxFile("incrementProperty.kt");
-    }
-
     public void testJavaInterfaceMethod() throws Exception {
         loadText("import java.util.*; fun foo(l: ArrayList<String>) { l.add(\"foo\") }");
         final Method main = generateFunction();
@@ -507,12 +495,4 @@ public class NamespaceGenTest extends CodegenTestCase {
         //noinspection ImplicitArrayToString
         assertEquals("s" + args.toString(), main.invoke(null, "s", args));
     }
-
-    public void testPrivateTopLevelPropAndVarInInner() {
-        blackBoxFile("privateTopLevelPropAndVarInInner.kt");
-    }
-
-    public void testInvokeSpecial() {
-        blackBoxFile("invokespecial.kt");
-    }
 }