Use XMLParser API from fast-xml-parser 4.x

Author: trivikr

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/HttpProtocolTestGenerator.java

@@ -575,7 +575,7 @@ private String registerBodyComparatorStub(String mediaType) {
             case "application/xml":
                 writer.addDependency(TypeScriptDependency.XML_PARSER);
                 writer.addDependency(TypeScriptDependency.HTML_ENTITIES);
-                writer.addImport("parse", "xmlParse", "fast-xml-parser");
+                writer.addImport("XMLParser", null, "fast-xml-parser");
                 writer.addImport("decodeHTML", "decodeHTML", "entities");
                 additionalStubs.add("protocol-test-xml-stub.ts");
                 return "compareEquivalentXmlBodies(bodyString, r.body.toString())";

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/protocol-test-xml-stub.ts

@@ -16,7 +16,7 @@ const compareEquivalentXmlBodies = (
   };
 
   const parseXmlBody = (body: string) => {
-    const parsedObj = xmlParse(body, parseConfig);
+    const parsedObj = new XMLParser(parseConfig).parse(body);
     const textNodeName = "#text";
     const key = Object.keys(parsedObj)[0];
     const parsedObjToReturn = parsedObj[key];