Remove const enum label from node (now works with --isolatedModules)

node/index.d.ts

@@ -3958,7 +3958,7 @@ declare module "v8" {
         physical_space_size: number;
     }
 
-    const enum DoesZapCodeSpaceFlag {
+    enum DoesZapCodeSpaceFlag {
         Disabled = 0,
         Enabled = 1
     }

node/tsconfig.json

@@ -15,6 +15,7 @@
         ],
         "types": [],
         "noEmit": true,
-        "forceConsistentCasingInFileNames": true
+        "forceConsistentCasingInFileNames": true,
+        "isolatedModules": true
     }
 }