result.txt

chrome/content/about.js 118
  for (name in info.commands)

chrome/content/popupmenu.js 67
      for (i in results) {

chrome/content/report-bug.js 106
  for (name in info)

chrome/content/skinlist.js 50
  for( i in skinList){

chrome/content/skinlist.js 94
  for(x in lines){

feed-parts/footer/final.js 47
    for (name in this)

feed-parts/footer/final.js 57
  for (i = 0; i < funcs.length; i++)

feed-parts/header/cmdutils.js 630
     for each(login in logins) {

feed-parts/header/cmdutils.js 660
  for each(login in logins){

feed-parts/header/cmdutils.js 806
    for (label in options.modifiers) {

feed-parts/header/cmdutils.js 906
  for (key in options) {

feed-parts/header/cmdutils.js 1132
      for (data in options.postData)

feed-parts/header/cmdutils.js 1169
          for (data in options.postData)

feed-parts/header/cmdutils.js 1192
                for (p in path) {

feed-parts/header/cmdutils.js 1195
                for (d in data) {

feed-parts/header/cmdutils.js 1265
                for (result in results) {

feed-parts/header/en/nountypes.js 363
    for( x in noun_type_address.knownAddresses) {

modules/annotation_memory.js 143
    for (uri in ann)

modules/codesource.js 60
    for (headerCs in headerSources) {

modules/codesource.js 70
    for (footerCs in footerSources) {

modules/default_feed_plugin.js 250
      for (objName in sandbox) {

modules/feedaggregator.js 118
          for (name in feed.commands) {

modules/feedmanager.js 324
  for (name in this._plugins) {

modules/feedmanager.js 337
  for (url in this._feeds)

modules/locked_down_feed_plugin.js 221
        for (modLabel in modifiers) {

modules/locked_down_feed_plugin.js 517
  for (propName in schema) {

modules/parser/locale_en.js 57
  for(name in unfilledArgs) {

modules/parser/locale_en.js 83
  for (argName in unfilledArgs)  {

modules/parser/parser.js 226
    for each(verb in verbsToTry) {

modules/parser/parser.js 302
      for each(part in newSuggs) {

modules/parser/parser.js 324
                       for (x in commandList) ];

modules/parser/parser.js 702
    for each ( pronoun in this._parserPlugin.PRONOUNS ) {

modules/parser/tng/parser.js 59
      for (verb in verbs) {

modules/parser/tng/parser.js 61
        for (name in names(verbs[verb])) {

modules/parser/tng/parser.js 73
      for (verb in verbs) {

modules/parser/tng/parser.js 75
        for (name in names(verbs[verb])) {

modules/parser/tng/parser.js 447
    for each (parse in this._possibleParses) {

modules/parser/tng/setup.js 29
            for each (pair in this._verbArgPairs) {

modules/parser/tng/setup.js 102
    for each (role in window[this.currentLang].roles) {

modules/parser/tng/setup.js 112
    for (verb in verbs) {

modules/parser/tng/setup.js 115
      for each (arg in verbs[verb].arguments)

modules/parser/tng/utils.js 43
  for each (verb in verbs) {

modules/parser/tng/utils.js 44
    for each (name in (verb.names[demoParserInterface.currentLang] || verb.names.en)) {

modules/parser/tng/utils.js 51
  for each (name in (verb.names[demoParserInterface.currentLang] || verb.names.en)) {

modules/python_feed_endpoint.js 40
    for (uri in Endpoint.__registryCallbacks)

modules/sandboxfactory.js 109
    for (symbolName in globals) {

modules/skinsvc.js 288
    for each( skin in skinList){

modules/utils.js 224
    for(timerID in Utils.__timerData.timers) {

modules/utils.js 402
  for (key in params) {

modules/utils.js 426
  for (param in paramList) {

modules/utils.js 556
                    for (i in hash)].join("");

scripts/codemirror/js/editor.js 415
      for (cursor = pos.node; cursor; cursor = cursor.previousSibling)

scripts/codemirror/js/editor.js 433
      for (pos = h.nodeAfter(start.node); pos != end.node; pos = h.nodeAfter(pos))

scripts/jquery.js 184
			for ( name in options )

scripts/jquery.js 676
				for ( name in object )

scripts/jquery.js 687
				for ( name in object )

scripts/jquery.js 1316
				for ( name in jQuery.cache[ id ] )

scripts/jquery.js 1985
						for ( node = parent.firstChild; node; node = node.nextSibling ) {

scripts/jquery.js 2564
						for ( ret in events[type] ) break;

scripts/jquery.js 2580
			for ( ret in events ) break;

scripts/jquery.js 3874
			for ( p in prop ) {

scripts/jquery.js 4228
		for ( prop in rules ) container.style[prop] = rules[prop];

scripts/pixastic.js 101
	        for (i = 0, j = 0; i < elsLen; i++) {

scripts/wikicreole.js 42
            for (i in this.options) {

standard-feeds/email.js 90
  for( domain in domains){

standard-feeds/general.js 65
  for(i=0; i<words.length; i++){

standard-feeds/general.js 238
  for(c = v[0], i = 0, l = p.length; l--; c = f[p[i]](c, v[++i]));

standard-feeds/general.js 245
      for(a = c; v.indexOf(c = e.charAt(++i)) < 0; a += c); f.push((--i, a));

standard-feeds/social.js 418
        for (k in data) if (data[k])

tests/framework.js 49
  for (name in obj) {

tests/framework.js 258
    for (prop in parent)

tests/framework.js 275
    for each (test in tests) {

varfull.rb

#!ruby
re = /^(\s*for(?:\s+each)?\s*\((?!\s*\b(?:var|let)\b))\s*(?=\w+)/
list = %w{chrome/content/about.js 118
chrome/content/popupmenu.js 67
chrome/content/report-bug.js 106
chrome/content/skinlist.js 50
chrome/content/skinlist.js 94
feed-parts/footer/final.js 47
feed-parts/footer/final.js 57
feed-parts/header/cmdutils.js 630
feed-parts/header/cmdutils.js 660
feed-parts/header/cmdutils.js 806
feed-parts/header/cmdutils.js 906
feed-parts/header/cmdutils.js 1132
feed-parts/header/cmdutils.js 1169
feed-parts/header/cmdutils.js 1192
feed-parts/header/cmdutils.js 1195
feed-parts/header/cmdutils.js 1265
feed-parts/header/en/nountypes.js 363
modules/annotation_memory.js 143
modules/codesource.js 60
modules/codesource.js 70
modules/default_feed_plugin.js 250
modules/feedaggregator.js 118
modules/feedmanager.js 324
modules/feedmanager.js 337
modules/locked_down_feed_plugin.js 221
modules/locked_down_feed_plugin.js 517
modules/parser/locale_en.js 57
modules/parser/locale_en.js 83
modules/parser/parser.js 226
modules/parser/parser.js 302
modules/parser/parser.js 702
modules/parser/tng/parser.js 59
modules/parser/tng/parser.js 61
modules/parser/tng/parser.js 73
modules/parser/tng/parser.js 75
modules/parser/tng/parser.js 447
modules/parser/tng/setup.js 29
modules/parser/tng/setup.js 102
modules/parser/tng/setup.js 112
modules/parser/tng/setup.js 115
modules/parser/tng/utils.js 43
modules/parser/tng/utils.js 44
modules/parser/tng/utils.js 51
modules/python_feed_endpoint.js 40
modules/sandboxfactory.js 109
modules/skinsvc.js 288
modules/utils.js 224
modules/utils.js 402
modules/utils.js 426
standard-feeds/email.js 90
standard-feeds/general.js 65
tests/framework.js 49
tests/framework.js 258
  tests/framework.js 275}
dict = list.each_slice(2).reduce({}) do |h, (n, l)|
  (h[n] ||= []) << l.to_i
  h
end
dict.each do |name, targets|
  ls = IO.read(name).force_encoding('utf-8').lines.to_a
  ls.each_with_index do |line, i|
    puts line.gsub! re, '\1var ' if targets.index i + 1
  end
  File.open(name, 'wb'){|file| ls.each{|l| file << l } }
  puts "#{name} #{targets * ?,}"
end

varless.rb

#!ruby
re = /^\s*for(?:\s+each)?\s*\((?!\s*(?:var|let))\s*\w+/
Dir.glob('**/*.js').each do |name|
  IO.read(name).force_encoding('utf-8').lines.with_index do |line, i|
    print "#{name} #{i + 1}\n#{line}\n" if line =~ re
  end
end