[heap] Ensure that allocation happens on the right thread

LocalHeap should only be used on the heap it was created on.

Bug: v8:10315
Change-Id: Ia06f0169d39b4148b356568795f4e316361a1e9b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2323358Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69114}

src/heap/concurrent-allocator-inl.h

@@ -22,6 +22,10 @@ AllocationResult ConcurrentAllocator::Allocate(int object_size,
                                                AllocationOrigin origin) {
   // TODO(dinfuehr): Add support for allocation observers
   CHECK(FLAG_concurrent_allocation);
+
+  // Ensure that we are on the right thread
+  DCHECK_EQ(LocalHeap::Current(), local_heap_);
+
   if (object_size > kMaxLabObjectSize) {
     return AllocateOutsideLab(object_size, alignment, origin);
   }