Fix unused lambda captures.

test/unittests/heap/slot-set-unittest.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits>
 #include <map>
 
 #include "src/globals.h"
 #include "src/heap/slot-set.h"
 #include "src/heap/spaces.h"
@@ skipping 132 matching lines @@
     set.Insert(Page::kPageSize / 2);
     set.RemoveRange(0, Page::kPageSize, mode);
     for (uint32_t i = 0; i < Page::kPageSize; i += kPointerSize) {
       EXPECT_FALSE(set.Lookup(i));
     }
   }
 }
 
 TEST(TypedSlotSet, Iterate) {
   TypedSlotSet set(0);
-  const int kDelta = 10000001;
-  const int kHostDelta = 50001;
+  // These two constants must be static as a workaround
+  // for a MSVC++ bug about lambda captures, see the discussion at
+  // https://social.msdn.microsoft.com/Forums/SqlServer/4abf18bd-4ae4-4c72-ba3e-3b13e7909d5f
+  static const int kDelta = 10000001;
+  static const int kHostDelta = 50001;
   int added = 0;
   uint32_t j = 0;
   for (uint32_t i = 0; i < TypedSlotSet::kMaxOffset;
        i += kDelta, j += kHostDelta) {
     SlotType type = static_cast<SlotType>(i % CLEARED_SLOT);
     set.Insert(type, j, i);
     ++added;
   }
   int iterated = 0;
   set.Iterate(
-      [&iterated, kDelta, kHostDelta](SlotType type, Address host_addr,
-                                      Address addr) {
+      [&iterated](SlotType type, Address host_addr,
+                  Address addr) {
         uint32_t i = static_cast<uint32_t>(reinterpret_cast<uintptr_t>(addr));
         uint32_t j =
             static_cast<uint32_t>(reinterpret_cast<uintptr_t>(host_addr));
         EXPECT_EQ(i % CLEARED_SLOT, static_cast<uint32_t>(type));
         EXPECT_EQ(0u, i % kDelta);
         EXPECT_EQ(0u, j % kHostDelta);
         ++iterated;
         return i % 2 == 0 ? KEEP_SLOT : REMOVE_SLOT;
       },
       TypedSlotSet::KEEP_EMPTY_CHUNKS);
@@ skipping 35 matching lines @@
           CHECK(reinterpret_cast<uintptr_t>(host_addr) < start ||
                 reinterpret_cast<uintptr_t>(host_addr) >= end);
           return KEEP_SLOT;
         },
         TypedSlotSet::KEEP_EMPTY_CHUNKS);
   }
 }
 
 }  // namespace internal
 }  // namespace v8