C++: 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: I6fbe13ddc1485efe95c3156097bf41d90c0febac
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/plugins/cpptools/includeutils.cpp

@@ -217,7 +217,7 @@ int LineForNewIncludeDirective::operator()(const QString &newIncludeFileName,
         *newLinesToAppend = false;
 
     const QString pureIncludeFileName = newIncludeFileName.mid(1, newIncludeFileName.length() - 2);
-    const CPlusPlus::Client::IncludeType newIncludeType =
+    const Client::IncludeType newIncludeType =
         newIncludeFileName.startsWith(QLatin1Char('"')) ? Client::IncludeLocal
                                                         : Client::IncludeGlobal;
 
@@ -391,11 +391,11 @@ QList<IncludeGroup> IncludeGroup::detectIncludeGroupsByIncludeType(const QList<I
 {
     // Create sub groups
     QList<IncludeGroup> result;
-    CPlusPlus::Client::IncludeType lastIncludeType;
+    Client::IncludeType lastIncludeType;
     QList<Include> currentIncludes;
     bool isFirst = true;
     foreach (const Include &include, includes) {
-        const CPlusPlus::Client::IncludeType currentIncludeType = include.type();
+        const Client::IncludeType currentIncludeType = include.type();
 
         // First include...
         if (isFirst) {