Refresh master with initial release/0.24 snapshot (#332)

* Initial port of release/0.24 source code

* Fix additional headers

* Fix a typo in launch.json

extensions/powershell/language-configuration.json

@@ -22,5 +22,11 @@
 		["(", ")"],
 		["\"", "\""],
 		["'", "'"]
-	]
+	],
+	"folding": {
+		"markers": {
+			"start": "^\\s*#region\\b",
+			"end": "^\\s*#endregion\\b"
+		}
+	}
 }

extensions/powershell/package.json

@@ -14,6 +14,10 @@
 			"language": "powershell",
 			"scopeName": "source.powershell",
 			"path": "./syntaxes/PowershellSyntax.tmLanguage"
+		}],
+		"snippets": [{
+			"language": "powershell",
+			"path": "./snippets/powershell.json"
 		}]
 	},
 	"scripts": {

extensions/powershell/snippets/powershell.json

@@ -0,0 +1,16 @@
+{
+	"Region Start": {
+		"prefix": "#region",
+		"body": [
+			"#region $0"
+		],
+		"description": "Folding Region Start"
+	},
+	"Region End": {
+		"prefix": "#endregion",
+		"body": [
+			"#endregion"
+		],
+		"description": "Folding Region End"
+	}
+}

extensions/powershell/syntaxes/PowershellSyntax.tmLanguage

@@ -45,7 +45,7 @@
 		</dict>
 		<dict>
 			<key>begin</key>
-			<string>(?&lt;![\\-])#</string>
+			<string>(?&lt;![`\\-])#</string>
 			<key>end</key>
 			<string>$</string>
 			<key>name</key>
@@ -246,7 +246,7 @@
 		</dict>
 		<dict>
 			<key>match</key>
-			<string>(?&lt;!\w)((?i:begin|break|catch|continue|data|define|do|dynamicparam|else|elseif|end|exit|finally|for|foreach(?!-object)|from|if|in|inlinescript|parallel|param|process|return|switch|throw|trap|try|until|using|var|where(?!=-object)|while)|%|\?)(?!\w)</string>
+			<string>(?&lt;!\w)((?i:begin|break|catch|continue|data|define|do|dynamicparam|else|elseif|end|exit|finally|for|foreach(?!-object)|from|if|in|inlinescript|parallel|param|process|return|switch|throw|trap|try|until|using|var|where(?!-object)|while)|%|\?)(?!\w)</string>
 			<key>name</key>
 			<string>keyword.control.powershell</string>
 		</dict>
@@ -426,6 +426,14 @@
 					<key>name</key>
 					<string>support.function.powershell</string>
 				</dict>
+				<dict>
+					<key>comment</key>
+					<string>Builtin cmdlets with reserved verbs</string>
+					<key>match</key>
+					<string>(?&lt;!\w)(?i:where-object)(?!\w)</string>
+					<key>name</key>
+					<string>support.function.powershell</string>
+				</dict>
 			</array>
 		</dict>
 		<key>commentEmbeddedDocs</key>