Build: Lint the minified jQuery file as well

While we have absolutely no style-related expectations to our minified file,
we do care that it's valid ES 5.1. This is now verified.

Also, update grunt-eslint as a newer ESLint version is required to be able
to use "extends" inside of the "overrides" section.

Fixes gh-3075
Closes gh-4594
Ref gh-4598

.eslintignore

@@ -3,6 +3,7 @@ node_modules
 *.min.js
 dist/**
 !dist/jquery.js
+!dist/jquery.min.js
 test/data/jquery-1.9.1.js
 test/data/badcall.js
 test/data/badjson.js

Gruntfile.js

@@ -107,7 +107,7 @@ module.exports = function( grunt ) {
 			// We have to explicitly declare "src" property otherwise "newer"
 			// task wouldn't work properly :/
 			dist: {
-				src: "dist/jquery.js"
+				src: [ "dist/jquery.js", "dist/jquery.min.js" ]
 			},
 			dev: {
 				src: [ "src/**/*.js", "Gruntfile.js", "test/**/*.js", "build/**/*.js" ]

dist/.eslintrc.json

@@ -1,23 +1,33 @@
 {
 	"root": true,
 
-	"extends": "../.eslintrc-browser.json",
+	"parserOptions": {
+		"ecmaVersion": 5,
+		"sourceType": "script"
+	},
 
-	"rules": {
-		// That is okay for the built version
-		"no-multiple-empty-lines": "off",
+	"overrides": [
+		{
+			"files": "jquery.js",
+			"extends": "../.eslintrc-browser.json",
 
-		// Sizzle is not compatible with jQuery code style
-		"no-nested-ternary": "off",
-		"no-unused-expressions": "off",
-		"no-unused-vars": "off",
-		"lines-around-comment": "off",
-		"space-in-parens": "off",
-		"camelcase": "off",
-		"computed-property-spacing": "off",
-		"max-len": "off",
-		"dot-notation": "off",
-		"semi-spacing": "off",
-		"brace-style": "off"
-	}
+			"rules": {
+				// That is okay for the built version
+				"no-multiple-empty-lines": "off",
+
+				// Sizzle is not compatible with jQuery code style
+				"no-nested-ternary": "off",
+				"no-unused-expressions": "off",
+				"no-unused-vars": "off",
+				"lines-around-comment": "off",
+				"space-in-parens": "off",
+				"camelcase": "off",
+				"computed-property-spacing": "off",
+				"max-len": "off",
+				"dot-notation": "off",
+				"semi-spacing": "off",
+				"brace-style": "off"
+			}
+		}
+	]
 }

package.json

@@ -36,7 +36,7 @@
     "grunt-compare-size": "0.4.2",
     "grunt-contrib-uglify": "3.4.0",
     "grunt-contrib-watch": "1.1.0",
-    "grunt-eslint": "21.0.0",
+    "grunt-eslint": "22.0.0",
     "grunt-git-authors": "3.2.0",
     "grunt-jsonlint": "1.1.0",
     "grunt-karma": "3.0.1",