logic: lazy load code annotations

* code annotations are loaded after showing the code file
* added traces
* refactored highlighter
* fixed error tooltip style in codeview

fortune cookie message = It's not the time that counts, but what you do with it.

src/lib/data/location/SourceLocationFile.cpp

@@ -115,6 +115,16 @@ SourceLocation* SourceLocationFile::addSourceLocationCopy(const SourceLocation*
 	return copy.get();
 }
 
+void SourceLocationFile::copySourceLocations(std::shared_ptr<SourceLocationFile> file)
+{
+	file->forEachSourceLocation(
+		[this](SourceLocation* location)
+		{
+			addSourceLocationCopy(location);
+		}
+	);
+}
+
 SourceLocation* SourceLocationFile::getSourceLocationById(Id locationId) const
 {
 	std::map<Id, SourceLocation*>::const_iterator it = m_locationIndex.find(locationId);

src/lib/data/location/SourceLocationFile.h

@@ -45,6 +45,8 @@ public:
 		size_t endLineNumber, size_t endColumnNumber);
 	SourceLocation* addSourceLocationCopy(const SourceLocation* location);
 
+	void copySourceLocations(std::shared_ptr<SourceLocationFile> file);
+
 	SourceLocation* getSourceLocationById(Id locationId) const;
 
 	void forEachSourceLocation(std::function<void(SourceLocation*)> func) const;