Revert of Replaced different means of zone pooling/reusing by one zone segment pool

test/unittests/BUILD.gn

 # 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.
 
 import("../../gni/v8.gni")
 
 v8_executable("unittests") {
   testonly = true
 
   sources = [
@@ skipping 64 matching lines @@
     "compiler/schedule-unittest.cc",
     "compiler/scheduler-rpo-unittest.cc",
     "compiler/scheduler-unittest.cc",
     "compiler/simplified-operator-reducer-unittest.cc",
     "compiler/simplified-operator-unittest.cc",
     "compiler/state-values-utils-unittest.cc",
     "compiler/tail-call-optimization-unittest.cc",
     "compiler/typed-optimization-unittest.cc",
     "compiler/typer-unittest.cc",
     "compiler/value-numbering-reducer-unittest.cc",
-    "compiler/zone-stats-unittest.cc",
+    "compiler/zone-pool-unittest.cc",
     "counters-unittest.cc",
     "eh-frame-iterator-unittest.cc",
     "eh-frame-writer-unittest.cc",
     "heap/bitmap-unittest.cc",
     "heap/gc-idle-time-handler-unittest.cc",
     "heap/gc-tracer-unittest.cc",
     "heap/heap-unittest.cc",
     "heap/marking-unittest.cc",
     "heap/memory-reducer-unittest.cc",
     "heap/scavenge-job-unittest.cc",
@@ skipping 86 matching lines @@
 
     # Suppress warnings about importing locally defined symbols.
     if (is_component_build) {
       ldflags = [
         "/ignore:4049",
         "/ignore:4217",
       ]
     }
   }
 }