Fix ordering of objects in callsFilterInUnionWithoutSensitiveData

Author: trivikr

smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/StructureGeneratorTest.java

@@ -173,8 +173,8 @@ public void callsFilterForUnionWithoutSensitiveData() {
     public void callsFilterInUnionWithoutSensitiveData() {
         testStructureCodegen("test-union-without-sensitive-data.smithy",
                                 "  export const filterSensitiveLog = (obj: TestUnion): any => {\n"
-                                + "    if (obj.barString !== undefined) return {barString: obj.barString};\n"
                                 + "    if (obj.fooString !== undefined) return {fooString: obj.fooString};\n"
+                                + "    if (obj.barString !== undefined) return {barString: obj.barString};\n"
                                 + "    if (obj.$unknown !== undefined) return {[obj.$unknown[0]]: obj.$unknown[1]};\n"
                                 + "  }\n");
     }