[FOLD] update tests

Author: sdkrystian

test-files/golden-tests/enum.xml

@@ -40,7 +40,7 @@
       <type name="char"/>
     </base>
     <file path="enum.cpp" line="19" class="def"/>
-    <enumerator name="e2" initializer="" id="WhHxTXqItGXwZujc82O1Xfzbaz4=">
+    <enumerator name="e2" initializer="0" id="WhHxTXqItGXwZujc82O1Xfzbaz4=">
       <file path="enum.cpp" line="21" class="def"/>
     </enumerator>
     <enumerator name="e3" initializer="1" id="Rifzp55QTXd/noKg5TyWoEJWlpE=">
@@ -60,7 +60,7 @@
         <text>E2 description.</text>
       </para>
     </doc>
-    <enumerator name="e4" initializer="" id="RyRlkoU0rHCqW5D5O8YXfJrvfaw=">
+    <enumerator name="e4" initializer="0" id="RyRlkoU0rHCqW5D5O8YXfJrvfaw=">
       <file path="enum.cpp" line="35" class="def"/>
       <doc>
         <para>
@@ -88,7 +88,7 @@
       <type name="char"/>
     </base>
     <file path="enum.cpp" line="43" class="def"/>
-    <enumerator name="e6" initializer="" id="m/aInWQVfzBhSp/BbwL1S6HYfgI=">
+    <enumerator name="e6" initializer="0" id="m/aInWQVfzBhSp/BbwL1S6HYfgI=">
       <file path="enum.cpp" line="45" class="def"/>
     </enumerator>
     <enumerator name="e7" initializer="1" id="s6xZcC+IxMf8dGaSjBuD4CkmAuU=">