Doc: Fix documentation warnings for Qt Core

- QCborError: Classes cannot relate to header files; use \inheaderfile
  instead and link to the class from header file documentation.

- QRecursiveMutex: QDoc doesn't allow shared documentation comments
  for duplicating \fn docs between the base and deriving classes.
  Remove the sharing, the function documentation is available under
  'All Members' doc for QRecursiveMutex.

- QMultiMap: unite() and one overload of insert() were not recognized
  because their definitions in the same header file interfered with
  QDoc - use Q_CLANG_QDOC macro to comment them out, and tag \fn
  comments to ensure that the function documentation is matched.

Change-Id: Ic96869904a72d92453e4ffa6901000147571969b
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index a2b7fec5cd..71eec11e01 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -523,7 +523,7 @@ struct DefinedTypesFilter {
     as the QMetaType \a b, otherwise returns \c false.
 */
 
-/*! \fn bool operator!=(const QMetaType &a, const QMetaType &c)
+/*! \fn bool operator!=(const QMetaType &a, const QMetaType &b)
     \since 5.15
     \relates QMetaType
     \overload