chore: codegen to use array for SetShape

Author: trivikr

protocol_tests/aws-ec2/protocols/Aws_ec2.ts

@@ -1838,7 +1838,7 @@ const deserializeAws_ec2XmlEnumsOutput = (
     contents.fooEnumMap = deserializeAws_ec2FooEnumMap(wrappedItem, context);
   }
   if (output.fooEnumSet === "") {
-    contents.fooEnumSet = new Set([]);
+    contents.fooEnumSet = [];
   }
   if (
     output["fooEnumSet"] !== undefined &&
@@ -1982,7 +1982,7 @@ const deserializeAws_ec2XmlListsOutput = (
     contents.stringList = deserializeAws_ec2StringList(wrappedItem, context);
   }
   if (output.stringSet === "") {
-    contents.stringSet = new Set([]);
+    contents.stringSet = [];
   }
   if (
     output["stringSet"] !== undefined &&

protocol_tests/aws-query/protocols/Aws_query.ts

@@ -2373,7 +2373,7 @@ const deserializeAws_queryXmlEnumsOutput = (
     contents.fooEnumMap = deserializeAws_queryFooEnumMap(wrappedItem, context);
   }
   if (output.fooEnumSet === "") {
-    contents.fooEnumSet = new Set([]);
+    contents.fooEnumSet = [];
   }
   if (
     output["fooEnumSet"] !== undefined &&
@@ -2523,7 +2523,7 @@ const deserializeAws_queryXmlListsOutput = (
     contents.stringList = deserializeAws_queryStringList(wrappedItem, context);
   }
   if (output.stringSet === "") {
-    contents.stringSet = new Set([]);
+    contents.stringSet = [];
   }
   if (
     output["stringSet"] !== undefined &&

protocol_tests/aws-restjson/protocols/Aws_restJson1_1.ts

@@ -2113,11 +2113,9 @@ export async function deserializeAws_restJson1_1InputAndOutputWithHeadersCommand
       .map(_entry => _entry.trim());
   }
   if (output.headers["x-stringset"] !== undefined) {
-    contents.headerStringSet = new Set(
-      (output.headers["x-stringset"] || "")
-        .split(",")
-        .map(_entry => _entry.trim())
-    );
+    contents.headerStringSet = (output.headers["x-stringset"] || "")
+      .split(",")
+      .map(_entry => _entry.trim());
   }
   if (output.headers["x-timestamplist"] !== undefined) {
     contents.headerTimestampList = __splitEvery(

protocol_tests/aws-restxml/protocols/Aws_restXml.ts

@@ -2835,11 +2835,9 @@ export async function deserializeAws_restXmlInputAndOutputWithHeadersCommand(
       .map(_entry => _entry.trim());
   }
   if (output.headers["x-stringset"] !== undefined) {
-    contents.headerStringSet = new Set(
-      (output.headers["x-stringset"] || "")
-        .split(",")
-        .map(_entry => _entry.trim())
-    );
+    contents.headerStringSet = (output.headers["x-stringset"] || "")
+      .split(",")
+      .map(_entry => _entry.trim());
   }
   if (output.headers["x-timestamplist"] !== undefined) {
     contents.headerTimestampList = __splitEvery(
@@ -3678,7 +3676,7 @@ export async function deserializeAws_restXmlXmlEnumsCommand(
     );
   }
   if (data.fooEnumSet === "") {
-    contents.fooEnumSet = new Set([]);
+    contents.fooEnumSet = [];
   }
   if (
     data["fooEnumSet"] !== undefined &&
@@ -3866,7 +3864,7 @@ export async function deserializeAws_restXmlXmlListsCommand(
     );
   }
   if (data.stringSet === "") {
-    contents.stringSet = new Set([]);
+    contents.stringSet = [];
   }
   if (
     data["stringSet"] !== undefined &&