Update for js.lib on Haxe dev

see HaxeFoundation/haxe#7390

src/import.hx

@@ -1,6 +1,12 @@
+#if haxe4
+import js.lib.Error;
+import js.lib.RegExp;
+import js.lib.Promise.Thenable;
+#else
 import js.Error;
 import js.RegExp;
 import js.Promise.Thenable;
+#end
 import ts.ReadonlyArray;
 import haxe.Constraints.Function;
 import haxe.DynamicAccess;

src/vscode/LanguageConfiguration.hx

@@ -1,5 +1,11 @@
 package vscode;
 
+#if haxe4
+import js.lib.RegExp;
+#else
+import js.RegExp;
+#end
+
 /**
  * The language configuration interfaces defines the contract between extensions
  * and various editor features, like automatic bracket insertion, automatic indentation etc.
@@ -23,7 +29,7 @@ typedef LanguageConfiguration = {
 	 * e.g.: A regex that matches anything except known separators (and dot is allowed to occur in a floating point number):
 	 *   /(-?\d*\.\d\w*)|([^\`\~\!\@\#\%\^\&\*\(\)\-\=\+\[\{\]\}\\\|\;\:\'\"\,\.\<\>\/\?\s]+)/g
 	 */
-	@:optional var wordPattern:js.RegExp;
+	@:optional var wordPattern:RegExp;
 
 	/**
 	 * The language's indentation settings.

src/vscode/TextDocument.hx

@@ -1,5 +1,11 @@
 package vscode;
 
+#if haxe4
+import js.lib.RegExp;
+#else
+import js.RegExp;
+#end
+
 /**
  * Represents a text document, such as a source file. Text documents have
  * [lines](#TextLine) and knowledge about an underlying resource like a file.
@@ -139,7 +145,7 @@ typedef TextDocument = {
 	 * @param regex Optional regular expression that describes what a word is.
 	 * @return A range spanning a word, or `undefined`.
 	 */
-	function getWordRangeAtPosition(position:Position, ?regex:js.RegExp):Null<Range>;
+	function getWordRangeAtPosition(position:Position, ?regex:RegExp):Null<Range>;
 
 	/**
 	 * Ensure a range is completely contained in this document.