CMake: Semi-automatic cleanups

* Shorten header guards
* Use override and auto where possible
* Remove useless destructors, etc.
* Remove private slots sections, unify private: sections
* Use member initialization where it makes sense

Change-Id: I00eaf6d706adc16859176d1b68c631d3336bb39f
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>

src/plugins/cmakeprojectmanager/cmakeparser.cpp

@@ -42,8 +42,7 @@ using namespace ProjectExplorer;
 const char COMMON_ERROR_PATTERN[] = "^CMake Error at (.*):([0-9]*) \\((.*)\\):";
 const char NEXT_SUBERROR_PATTERN[] = "^CMake Error in (.*):";
 
-CMakeParser::CMakeParser() :
-    m_skippedFirstEmptyLine(false)
+CMakeParser::CMakeParser()
 {
     m_commonError.setPattern(QLatin1String(COMMON_ERROR_PATTERN));
     m_commonError.setMinimal(true);