cppgc: young-gen: Fix MSVC build

Bug: chromium:1029379
Change-Id: Ia1de91ab0ffc63912ce26349d095881a7a141ff8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3550269Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79620}

src/heap/cppgc/caged-heap-local-data.cc

@@ -31,10 +31,12 @@ void AgeTable::Reset(PageAllocator* allocator) {
   // TODO(chromium:1029379): Consider MADV_DONTNEED instead of MADV_FREE on
   // POSIX platforms.
   std::fill(table_.begin(), table_.end(), Age::kOld);
-  const uintptr_t begin = RoundUp(reinterpret_cast<uintptr_t>(table_.begin()),
-                                  allocator->CommitPageSize());
-  const uintptr_t end = RoundDown(reinterpret_cast<uintptr_t>(table_.end()),
+  const uintptr_t begin = RoundUp(reinterpret_cast<uintptr_t>(table_.data()),
                                   allocator->CommitPageSize());
+  const uintptr_t end =
+      RoundDown(reinterpret_cast<uintptr_t>(table_.data() + table_.size()),
+                allocator->CommitPageSize());
+
   allocator->DiscardSystemPages(reinterpret_cast<void*>(begin), end - begin);
 }
 

src/heap/cppgc/heap-base.cc

@@ -130,7 +130,8 @@ void HeapBase::ResetRememberedSet() {
 
    protected:
     bool VisitNormalPageSpace(NormalPageSpace& space) {
-      some_lab_is_set_ |= space.linear_allocation_buffer().size();
+      some_lab_is_set_ |=
+          static_cast<bool>(space.linear_allocation_buffer().size());
       return true;
     }