[base] Remove PointersMatch, making a separate std::equals hashmap

src/crankshaft/hydrogen-bce.h

Index: src/crankshaft/hydrogen-bce.h
diff --git a/src/crankshaft/hydrogen-bce.h b/src/crankshaft/hydrogen-bce.h
index e819ffc403cc49c947dfe099c003bae902acff06..237fb953f29fd9f8a722e79f349332fdeddc540b 100644
--- a/src/crankshaft/hydrogen-bce.h
+++ b/src/crankshaft/hydrogen-bce.h
@@ -13,7 +13,7 @@ namespace internal {
 
 class BoundsCheckBbData;
 class BoundsCheckKey;
-class BoundsCheckTable : private ZoneHashMap {
+class BoundsCheckTable : private CustomMatcherZoneHashMap {
  public:
   explicit BoundsCheckTable(Zone* zone);