Don't run tests that rely on compaction when compaction is turned off.

test/cctest/test-weaksets.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 162 matching lines @@
       32, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements());
 
   // Check shrunk capacity.
   CHECK_EQ(32, ObjectHashTable::cast(weakset->table())->Capacity());
 }
 
 
 // Test that weak set values on an evacuation candidate which are not reachable
 // by other paths are correctly recorded in the slots buffer.
 TEST(WeakSet_Regress2060a) {
+  if (i::FLAG_never_compact) return;
   FLAG_always_compact = true;
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();
   HandleScope scope(isolate);
   Handle<JSFunction> function =
       factory->NewFunction(factory->function_string(), factory->null_value());
   Handle<JSObject> key = factory->NewJSObject(function);
   Handle<JSWeakSet> weakset = AllocateJSWeakSet(isolate);
@@ skipping 15 matching lines @@
 
   // Force compacting garbage collection.
   CHECK(FLAG_always_compact);
   heap->CollectAllGarbage(Heap::kNoGCFlags);
 }
 
 
 // Test that weak set keys on an evacuation candidate which are reachable by
 // other strong paths are correctly recorded in the slots buffer.
 TEST(WeakSet_Regress2060b) {
+  if (i::FLAG_never_compact) return;
   FLAG_always_compact = true;
 #ifdef VERIFY_HEAP
   FLAG_verify_heap = true;
 #endif
 
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();
   HandleScope scope(isolate);
@@ skipping 18 matching lines @@
                    Handle<Smi>(Smi::FromInt(i), isolate));
   }
 
   // Force compacting garbage collection. The subsequent collections are used
   // to verify that key references were actually updated.
   CHECK(FLAG_always_compact);
   heap->CollectAllGarbage(Heap::kNoGCFlags);
   heap->CollectAllGarbage(Heap::kNoGCFlags);
   heap->CollectAllGarbage(Heap::kNoGCFlags);
 }