src: move FsStatsOffset and kFsStatsBufferLength to node_file.h

To avoid bloating env.h, as they are only used in node_file.*

PR-URL: #45498
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: joyeecheung

src/env.h

@@ -98,33 +98,6 @@ class ModuleWrap;
 class Environment;
 class Realm;
 
-enum class FsStatsOffset {
-  kDev = 0,
-  kMode,
-  kNlink,
-  kUid,
-  kGid,
-  kRdev,
-  kBlkSize,
-  kIno,
-  kSize,
-  kBlocks,
-  kATimeSec,
-  kATimeNsec,
-  kMTimeSec,
-  kMTimeNsec,
-  kCTimeSec,
-  kCTimeNsec,
-  kBirthTimeSec,
-  kBirthTimeNsec,
-  kFsStatsFieldsNumber
-};
-
-// Stat fields buffers contain twice the number of entries in an uv_stat_t
-// because `fs.StatWatcher` needs room to store 2 `fs.Stats` instances.
-constexpr size_t kFsStatsBufferLength =
-    static_cast<size_t>(FsStatsOffset::kFsStatsFieldsNumber) * 2;
-
 // Disables zero-filling for ArrayBuffer allocations in this scope. This is
 // similar to how we implement Buffer.allocUnsafe() in JS land.
 class NoArrayBufferZeroFillScope {

src/node_file.h

@@ -13,6 +13,33 @@ namespace fs {
 
 class FileHandleReadWrap;
 
+enum class FsStatsOffset {
+  kDev = 0,
+  kMode,
+  kNlink,
+  kUid,
+  kGid,
+  kRdev,
+  kBlkSize,
+  kIno,
+  kSize,
+  kBlocks,
+  kATimeSec,
+  kATimeNsec,
+  kMTimeSec,
+  kMTimeNsec,
+  kCTimeSec,
+  kCTimeNsec,
+  kBirthTimeSec,
+  kBirthTimeNsec,
+  kFsStatsFieldsNumber
+};
+
+// Stat fields buffers contain twice the number of entries in an uv_stat_t
+// because `fs.StatWatcher` needs room to store 2 `fs.Stats` instances.
+constexpr size_t kFsStatsBufferLength =
+    static_cast<size_t>(FsStatsOffset::kFsStatsFieldsNumber) * 2;
+
 class BindingData : public SnapshotableObject {
  public:
   explicit BindingData(Environment* env, v8::Local<v8::Object> wrap);