Revert "Use add_array instead of set_array in integration tests #374"

This reverts commit 19051fb.

Author: TobiasNx

metafix/src/test/resources/org/metafacture/metafix/integration/lookup/fromXml/toJson/lookupInDeeplyNestedArrayOfObjects/test.fix

@@ -1,11 +1,11 @@
 put_map("rswk-indicator", s: "SubjectHeading")
 
 if exists("6890?")
-  add_array("subject[].$append.type[]", "ComplexSubject")
-  add_array("subject[].$last.label")
-  add_array("subject[].$last.componentList[]")
+  set_array("subject[].$append.type[]", "ComplexSubject")
+  set_array("subject[].$last.label")
+  set_array("subject[].$last.componentList[]")
   do list(path: "6890?", "var": "$i")
-    add_array("subject[].$last.componentList[].$append.type[]")
+    set_array("subject[].$last.componentList[].$append.type[]")
     do list(path: "$i.D", "var": "$k")
       copy_field("$k", "subject[].$last.componentList[].$last.type[].$append")
     end

metafix/src/test/resources/org/metafacture/metafix/integration/method/fromXml/toJson/replace_allInOptionalSubfieldOfRepeatedObjectsWithAsterisk/test.fix

@@ -1,4 +1,4 @@
-add_array("RSWK[]")
+set_array("RSWK[]")
 do list(path: "650??", "var": "$i")
   copy_field("$i.a", "RSWK[].$append.subjectTopicName")
   copy_field("$i.v", "RSWK[].$last.subjectGenre")