Further clean-up now that class == NULL has been eliminated.

Change-Id: I8be4bb4e46813ec04a0f8cd22d30f9e9b28895f0
diff --git a/vm/alloc/MarkSweep.c b/vm/alloc/MarkSweep.c
index 5d2f859..c87c043 100644
--- a/vm/alloc/MarkSweep.c
+++ b/vm/alloc/MarkSweep.c
@@ -509,23 +509,15 @@
 
     assert(obj != NULL);
     assert(ctx != NULL);
-    /* Check that the object is aligned. */
-    assert(((uintptr_t)obj & 7) == 0);
+    assert(obj->clazz != NULL);
     clazz = obj->clazz;
-    /* Check that the class object is aligned. */
-    assert(((uintptr_t)clazz & 7) == 0);
     /* Dispatch a type-specific scan routine. */
     if (clazz == gDvm.classJavaLangClass) {
         scanClassObject((ClassObject *)obj, ctx);
-    } else if (clazz == NULL) {
-        return;
+    } else if (IS_CLASS_FLAG_SET(clazz, CLASS_ISARRAY)) {
+        scanArrayObject((ArrayObject *)obj, ctx);
     } else {
-        assert(clazz != NULL);
-        if (IS_CLASS_FLAG_SET(clazz, CLASS_ISARRAY)) {
-            scanArrayObject((ArrayObject *)obj, ctx);
-        } else {
-            scanDataObject((DataObject *)obj, ctx);
-        }
+        scanDataObject((DataObject *)obj, ctx);
     }
 }
 
diff --git a/vm/alloc/Visit.c b/vm/alloc/Visit.c
index 5f7aa9f..103b1f6 100644
--- a/vm/alloc/Visit.c
+++ b/vm/alloc/Visit.c
@@ -156,16 +156,14 @@
 {
     assert(visitor != NULL);
     assert(obj != NULL);
+    assert(obj->clazz != NULL);
     LOGV("Entering dvmVisitObject(visitor=%p,obj=%p)", visitor, obj);
     if (obj->clazz == gDvm.classJavaLangClass) {
         visitClassObject(visitor, (ClassObject *)obj);
+    } else if (IS_CLASS_FLAG_SET(obj->clazz, CLASS_ISARRAY)) {
+        visitArrayObject(visitor, obj);
     } else {
-        assert(obj->clazz != NULL);
-        if (IS_CLASS_FLAG_SET(obj->clazz, CLASS_ISARRAY)) {
-            visitArrayObject(visitor, obj);
-        } else {
-            visitDataObject(visitor, obj);
-        }
+        visitDataObject(visitor, obj);
     }
     LOGV("Exiting dvmVisitObject(visitor=%p,obj=%p)", visitor, obj);
 }