lib: consolidate redundant require() calls

PR-URL: #21699
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Jon Moss <me@jonathanmoss.me>

Author: cjihrig

lib/_http_outgoing.js

@@ -25,12 +25,11 @@ const assert = require('assert').ok;
 constStream=require('stream');
 constutil=require('util');
 constinternalUtil=require('internal/util');
-constinternalHttp=require('internal/http');
+const{ outHeadersKey, utcDate }=require('internal/http');
 const{ Buffer }=require('buffer');
 constcommon=require('_http_common');
 constcheckIsHttpToken=common._checkIsHttpToken;
 constcheckInvalidHeaderChar=common._checkInvalidHeaderChar;
-const{ outHeadersKey }=require('internal/http');
 const{
  defaultTriggerAsyncIdScope,
 symbols: { async_id_symbol }
@@ -48,7 +47,6 @@ const {
 }=require('internal/errors').codes;
 
 const{CRLF, debug }=common;
-const{ utcDate }=internalHttp;
 
 constkIsCorked=Symbol('isCorked');
 

lib/internal/crypto/random.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const{ AsyncWrap, Providers }=process.binding('async_wrap');
-const{ Buffer }=require('buffer');
+const{ Buffer, kMaxLength}=require('buffer');
 const{randomBytes: _randomBytes}=process.binding('crypto');
 const{
 ERR_INVALID_ARG_TYPE,
@@ -10,7 +10,6 @@ const {
 }=require('internal/errors').codes;
 const{ isArrayBufferView }=require('internal/util/types');
 
-const{ kMaxLength }=require('buffer');
 constkMaxUint32=2**32-1;
 constkMaxPossibleLength=Math.min(kMaxLength,kMaxUint32);
 

lib/internal/http2/core.js

@@ -2,7 +2,8 @@
 
 /* eslint-disable no-use-before-define */
 
-require('internal/util').assertCrypto();
+constinternalUtil=require('internal/util');
+internalUtil.assertCrypto();
 
 const{ internalBinding }=require('internal/bootstrap/loaders');
 const{ async_id_symbol }=require('internal/async_hooks').symbols;
@@ -71,7 +72,7 @@ const { utcDate } = require('internal/http');
 const{
  promisify,
 customInspectSymbol: kInspect
-}=require('internal/util');
+}=internalUtil;
 const{ isArrayBufferView }=require('internal/util/types');
 const{ defaultTriggerAsyncIdScope }=require('internal/async_hooks');
 const{_connectionListener: httpConnectionListener}=http;

lib/internal/modules/esm/translators.js

@@ -14,8 +14,9 @@ const fs = require('fs');
 const{ _makeLong }=require('path');
 const{ SafeMap }=require('internal/safe_globals');
 const{URL}=require('url');
-constdebug=require('util').debuglog('esm');
-constreadFileAsync=require('util').promisify(fs.readFile);
+constutil=require('util');
+constdebug=util.debuglog('esm');
+constreadFileAsync=util.promisify(fs.readFile);
 constreadFileSync=fs.readFileSync;
 constStringReplace=Function.call.bind(String.prototype.replace);
 constJsonParse=JSON.parse;