fix(protocol_tests): only trim xml tag values which contain newline

Author: trivikr

protocol_tests/aws-ec2/protocols/Aws_ec2.ts

@@ -2172,7 +2172,7 @@ const parseBody = (streamBody: any, context: __SerdeContext): any =>
         ignoreAttributes: false,
         parseNodeValue: false,
         trimValues: false,
-        tagValueProcessor: (val, tagName) => decodeHTML(val),
+        tagValueProcessor: (val) => (val.trim() === "" && val.includes("\n") ? "" : decodeHTML(val)),
       });
       const textNodeName = "#text";
       const key = Object.keys(parsedObj)[0];

protocol_tests/aws-query/protocols/Aws_query.ts

@@ -3002,7 +3002,7 @@ const parseBody = (streamBody: any, context: __SerdeContext): any =>
         ignoreAttributes: false,
         parseNodeValue: false,
         trimValues: false,
-        tagValueProcessor: (val, tagName) => decodeHTML(val),
+        tagValueProcessor: (val) => (val.trim() === "" && val.includes("\n") ? "" : decodeHTML(val)),
       });
       const textNodeName = "#text";
       const key = Object.keys(parsedObj)[0];

protocol_tests/aws-restxml/protocols/Aws_restXml.ts

@@ -6173,7 +6173,7 @@ const parseBody = (streamBody: any, context: __SerdeContext): any =>
         ignoreAttributes: false,
         parseNodeValue: false,
         trimValues: false,
-        tagValueProcessor: (val, tagName) => decodeHTML(val),
+        tagValueProcessor: (val) => (val.trim() === "" && val.includes("\n") ? "" : decodeHTML(val)),
       });
       const textNodeName = "#text";
       const key = Object.keys(parsedObj)[0];