Process global enums in declaration order

In the same vein as the previous commit, process global enums in order
added (which presumably is declaration order). For what we're doing at
this point, this may not be as critical, but again is needed to avoid a
spurious test failure.

Change-Id: If32a07fee2e7e9b7699e01eda3408ed57855e947

Author: mwoehlke-kitware

ApiExtractor/abstractmetabuilder.cpp

@@ -451,9 +451,8 @@ bool AbstractMetaBuilder::build(QIODevice* input)
     ReportHandler::flush();
 
     // We need to know all global enums
-    QHash<QString, EnumModelItem> enumMap = m_dom->enumMap();
-    ReportHandler::setProgressReference(enumMap);
-    foreach (EnumModelItem item, enumMap) {
+    ReportHandler::setProgressReference(m_dom->enumMap());
+    foreach (EnumModelItem item, m_dom->enums()) {
         ReportHandler::progress("Generating enum model...");
         AbstractMetaEnum *metaEnum = traverseEnum(item, 0, QSet<QString>());
         if (metaEnum) {