Read qmldir files in a thread and cache them in Snapshot.

Reviewed-by: Erik Verbruggen

src/libs/qmljs/parser/cmd.sed

@@ -1,3 +1,11 @@
 s/qdeclarative/qml/g
 s/QDECLARATIVE/QML/g
 s/QDeclarative/Qml/g
+
+# adjust pri file
+s/    \$\$PWD\/qmljsglobal_p.h/    $$PWD\/qmljsglobal_p.h \\\
+    $$PWD\/qmldirparser_p.h \\\
+    $$PWD\/qmlerror.h/
+s/    \$\$PWD\/qmljsparser.cpp/    $$PWD\/qmljsparser.cpp \\\
+    $$PWD\/qmldirparser.cpp \\\
+    $$PWD\/qmlerror.cpp/

src/libs/qmljs/parser/gen-parser.sh

@@ -10,3 +10,5 @@ for i in $QTDIR/src/declarative/qml/qdeclarative{error.{h,cpp},dirparser{_p.h,.c
     sed -f $me/cmd.sed $i > $me/$(echo $(basename $i) | sed s/qdeclarative/qml/)
 done
 
+# export QmlDirParser
+perl -p -0777 -i -e 's/QT_BEGIN_NAMESPACE\n\nclass QmlError;\n\nclass QmlDirParser/#include "qmljsglobal_p.h"\n\nQT_BEGIN_NAMESPACE\n\nclass QmlError;\n\nclass QML_PARSER_EXPORT QmlDirParser/' qmldirparser_p.h

src/libs/qmljs/parser/qmldirparser_p.h

@@ -56,11 +56,13 @@
 #include <QtCore/QUrl>
 #include <QtCore/QHash>
 
+#include "qmljsglobal_p.h"
+
 QT_BEGIN_NAMESPACE
 
 class QmlError;
 
-class QmlDirParser
+class QML_PARSER_EXPORT QmlDirParser
 {
     Q_DISABLE_COPY(QmlDirParser)