Added QSaveFile to the bootstrap library

It's quite a simple addition and required for the ahead of time compilation
tool for qtdeclarative.

Change-Id: Iba85ae5182919cdb5ab15a0b643e57c103eae632
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

src/corelib/io/qsavefile.cpp

@@ -104,13 +104,14 @@ QSaveFilePrivate::~QSaveFilePrivate()
     \sa QTextStream, QDataStream, QFileInfo, QDir, QFile, QTemporaryFile
 */
 
-/*!
-    Constructs a new file object with the given \a parent.
-*/
-QSaveFile::QSaveFile(QObject *parent)
-    : QFileDevice(*new QSaveFilePrivate, parent)
+#ifdef QT_NO_QOBJECT
+QSaveFile::QSaveFile(const QString &name)
+    : QFileDevice(*new QSaveFilePrivate)
 {
+    Q_D(QSaveFile);
+    d->fileName = name;
 }
+#else
 /*!
     Constructs a new file object to represent the file with the given \a name.
 */
@@ -120,6 +121,14 @@ QSaveFile::QSaveFile(const QString &name)
     Q_D(QSaveFile);
     d->fileName = name;
 }
+
+/*!
+    Constructs a new file object with the given \a parent.
+*/
+QSaveFile::QSaveFile(QObject *parent)
+    : QFileDevice(*new QSaveFilePrivate, parent)
+{
+}
 /*!
     Constructs a new file object with the given \a parent to represent the
     file with the specified \a name.
@@ -130,6 +139,7 @@ QSaveFile::QSaveFile(const QString &name, QObject *parent)
     Q_D(QSaveFile);
     d->fileName = name;
 }
+#endif
 
 /*!
     Destroys the file object, discarding the saved contents unless commit() was called.

src/corelib/io/qsavefile.h

@@ -58,14 +58,18 @@ class QSaveFilePrivate;
 
 class Q_CORE_EXPORT QSaveFile : public QFileDevice
 {
+#ifndef QT_NO_QOBJECT
     Q_OBJECT
+#endif
     Q_DECLARE_PRIVATE(QSaveFile)
 
 public:
 
     explicit QSaveFile(const QString &name);
+#ifndef QT_NO_QOBJECT
     explicit QSaveFile(QObject *parent = Q_NULLPTR);
     explicit QSaveFile(const QString &name, QObject *parent);
+#endif
     ~QSaveFile();
 
     QString fileName() const Q_DECL_OVERRIDE;

src/tools/bootstrap/bootstrap.pro

@@ -46,6 +46,7 @@ SOURCES += \
            ../../corelib/io/qresource.cpp \
            ../../corelib/io/qtemporaryfile.cpp \
            ../../corelib/io/qtextstream.cpp \
+           ../../corelib/io/qsavefile.cpp \
            ../../corelib/io/qstandardpaths.cpp \
            ../../corelib/io/qloggingcategory.cpp \
            ../../corelib/io/qloggingregistry.cpp \