Swift: Added support for isolated keyword (#3174)

Author: AvdLee

components/prism-swift.js

@@ -117,7 +117,7 @@ Prism.languages.swift = {
 		alias: 'important'
 	},
 
-	'keyword': /\b(?:Any|Protocol|Self|Type|actor|as|assignment|associatedtype|associativity|async|await|break|case|catch|class|continue|convenience|default|defer|deinit|didSet|do|dynamic|else|enum|extension|fallthrough|fileprivate|final|for|func|get|guard|higherThan|if|import|in|indirect|infix|init|inout|internal|is|lazy|left|let|lowerThan|mutating|none|nonisolated|nonmutating|open|operator|optional|override|postfix|precedencegroup|prefix|private|protocol|public|repeat|required|rethrows|return|right|safe|self|set|some|static|struct|subscript|super|switch|throw|throws|try|typealias|unowned|unsafe|var|weak|where|while|willSet)\b/,
+	'keyword': /\b(?:Any|Protocol|Self|Type|actor|as|assignment|associatedtype|associativity|async|await|break|case|catch|class|continue|convenience|default|defer|deinit|didSet|do|dynamic|else|enum|extension|fallthrough|fileprivate|final|for|func|get|guard|higherThan|if|import|in|indirect|infix|init|inout|internal|is|isolated|lazy|left|let|lowerThan|mutating|none|nonisolated|nonmutating|open|operator|optional|override|postfix|precedencegroup|prefix|private|protocol|public|repeat|required|rethrows|return|right|safe|self|set|some|static|struct|subscript|super|switch|throw|throws|try|typealias|unowned|unsafe|var|weak|where|while|willSet)\b/,
 	'boolean': /\b(?:false|true)\b/,
 	'nil': {
 		pattern: /\bnil\b/,

components/prism-swift.min.js

@@ -41,6 +41,7 @@ init
 inout
 internal
 is
+isolated
 lazy
 left
 let
@@ -131,6 +132,7 @@ willSet
 	["keyword", "inout"],
 	["keyword", "internal"],
 	["keyword", "is"],
+	["keyword", "isolated"],
 	["keyword", "lazy"],
 	["keyword", "left"],
 	["keyword", "let"],