TextEditor: Remove unneeded qualifications

Mostly done using the following ruby script:
Dir.glob('**/*.cpp').each { |file|
  next if file =~ %r{src/shared/qbs|/qmljs/}
  s = File.read(file)
  s.scan(/^using namespace (.*);$/) {
    ns = $1
    t = s.gsub(/^(.*)\b#{ns}::((?!Const)[A-Z])/) { |m|
      before = $1
      char = $2
      if before =~ /"|\/\/|\\|using|SIGNAL|SLOT|Q_/
        m
      else
        before + char
      end
    }
    if t != s
      puts file
      File.open(file, 'w').write(t)
    end
  }
}

Change-Id: Ief087658e2adc337ee02c49f0fb406597114df07
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/texteditor/findinfiles.cpp

@@ -56,7 +56,7 @@ FindInFiles::FindInFiles()
     m_directory(0)
 {
     m_instance = this;
-    connect(Core::EditorManager::instance(), SIGNAL(findOnFileSystemRequest(QString)),
+    connect(EditorManager::instance(), SIGNAL(findOnFileSystemRequest(QString)),
             this, SLOT(findOnFileSystem(QString)));
 }
 
@@ -74,7 +74,7 @@ QString FindInFiles::displayName() const
     return tr("Files on File System");
 }
 
-void FindInFiles::findAll(const QString &txt, Core::FindFlags findFlags)
+void FindInFiles::findAll(const QString &txt, FindFlags findFlags)
 {
     updateComboEntries(m_directory, true);
     BaseFileFind::findAll(txt, findFlags);
@@ -85,7 +85,7 @@ Utils::FileIterator *FindInFiles::files(const QStringList &nameFilters,
 {
     return new Utils::SubDirFileIterator(QStringList() << additionalParameters.toString(),
                                          nameFilters,
-                                         Core::EditorManager::defaultTextCodec());
+                                         EditorManager::defaultTextCodec());
 }
 
 QVariant FindInFiles::additionalParameters() const