For the quick fix AddIncludeForUndefinedIdentifier, if no class is found
via the locator, check the "Qt include paths" for a header file with the
same name as the class name.
Task-number: QTCREATORBUG-9538
Change-Id: I13c86844c2ff653fa479dc91eb109af2a6d76fae
Reviewed-by: Lorenz Haas <lykurg@gmail.com>
Reviewed-by: hjk <hjk121@nokiamail.com>