use error code

Author: mertcanaltin

lib/internal/fs/promises.js

@@ -39,6 +39,7 @@ const {
   aggregateTwoErrors,
   codes: {
     ERR_ACCESS_DENIED,
+    ERR_FS_FILE_TOO_LARGE,
     ERR_INVALID_ARG_VALUE,
     ERR_INVALID_STATE,
     ERR_METHOD_NOT_IMPLEMENTED,
@@ -525,7 +526,9 @@ async function readFileHandle(filehandle, options) {
 
     if (size > kIoMaxLength) {
       process.emitWarning(
-        `Warning: Detected \`fs.readFile()\` to read a huge file in memory (${size} bytes). Please consider using \`fs.createReadStream()\` instead to minimize memory overhead and increase the performance.`,
+      `Detected \`fs.readFile()\` to read a huge file in memory (${size} bytes). Please consider using \`fs.createReadStream()\` instead to minimize memory overhead and increase the performance.`,
+      'LargeFileWarning',
+      ERR_FS_FILE_TOO_LARGE
       );
     }