QRegExp include cleanup

This patch adds the missing include statements for QRegExp.

Change-Id: Ibb03b929940adb84ae190b5090cb6b88653cc14c
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cmakeprojectmanager/builddirmanager.cpp

@@ -57,6 +57,7 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QMessageBox>
+#include <QRegExp>
 #include <QRegularExpression>
 #include <QSet>
 #include <QTemporaryDir>

src/plugins/cmakeprojectmanager/cmakeautocompleter.cpp

@@ -25,6 +25,7 @@
 
 #include "cmakeautocompleter.h"
 
+#include <QRegExp>
 #include <QTextCursor>
 #include <QTextBlock>
 #include <QDebug>

src/plugins/cmakeprojectmanager/cmakebuildstep.h

@@ -27,6 +27,8 @@
 
 #include <projectexplorer/abstractprocessstep.h>
 
+#include <QRegExp>
+
 QT_BEGIN_NAMESPACE
 class QLineEdit;
 class QListWidget;

src/plugins/cmakeprojectmanager/cmakeparser.h

@@ -28,6 +28,7 @@
 #include <projectexplorer/ioutputparser.h>
 #include <projectexplorer/task.h>
 
+#include <QRegExp>
 #include <QRegularExpression>
 
 namespace CMakeProjectManager {