Regenerate smoke test files with serializeRecord fix

Co-authored-by: v-jiaodi <80496810+v-jiaodi@users.noreply.github.com>

Author: Copilot

packages/typespec-test/test/healthInsights_radiologyinsights/generated/typespec-ts/src/models/fhir/r4/models.ts

@@ -36,7 +36,7 @@ export interface Resource {
 
 export function resourceSerializer(item: Resource): any {
   return {
-    ...serializeRecord(item.additionalProperties),
+    ...serializeRecord(item.additionalProperties ?? {}),
     resourceType: item["resourceType"],
     id: item["id"],
     meta: !item["meta"] ? item["meta"] : metaSerializer(item["meta"]),

packages/typespec-test/test/openai_generic/generated/typespec-ts/src/models/models.ts

@@ -1745,7 +1745,7 @@ export interface ChatCompletionFunctionParameters {
 export function chatCompletionFunctionParametersSerializer(
   item: ChatCompletionFunctionParameters,
 ): any {
-  return { ...serializeRecord(item.additionalProperties) };
+  return { ...serializeRecord(item.additionalProperties ?? {}) };
 }
 
 /** Alias for _CreateChatCompletionRequestFunctionCall */

packages/typespec-test/test/openai_non_branded/generated/typespec-ts/src/models/models.ts

@@ -1744,7 +1744,7 @@ export interface ChatCompletionFunctionParameters {
 export function chatCompletionFunctionParametersSerializer(
   item: ChatCompletionFunctionParameters,
 ): any {
-  return { ...serializeRecord(item.additionalProperties) };
+  return { ...serializeRecord(item.additionalProperties ?? {}) };
 }
 
 /** Alias for _CreateChatCompletionRequestFunctionCall */