Doc: Fix documentation warnings related to Clang QDoc parser

Since Qt 5.11, QDoc uses Clang to parse C++ documentation. Clang
requires a module header, as well as proper include paths, to
build a precompiled header and process the sources.

To do this, add a custom module header that pulls in all Qt 3D modules
- this way, we can continue using a single documentation project to
covers all of Qt 3D.

Fix all documentation warnings are caused by missing namespaces, QML
module/type names and typos, as well as a number of linking problems
and other minor issues.

After this change, the remaining documentation issues consist of
'No documentation for ...' warnings.

Task-number: QTBUG-67790
Change-Id: I38b91163c475a00cc1893e793240470c5409eb57
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/render/renderstates/qrenderstatecreatedchange.cpp b/src/render/renderstates/qrenderstatecreatedchange.cpp
index 666543c39..02989a29e 100644
--- a/src/render/renderstates/qrenderstatecreatedchange.cpp
+++ b/src/render/renderstates/qrenderstatecreatedchange.cpp
@@ -64,7 +64,7 @@ public:
     Render::StateMask m_type;
 };
 
-/*!
+/*
  * The constructor creates a new QRenderStateCreatedChangeBase::QRenderStateCreatedChangeBase
  * instance with the specified \a renderState.
  */
@@ -73,8 +73,8 @@ QRenderStateCreatedChangeBase::QRenderStateCreatedChangeBase(const QRenderState
 {
 }
 
-/*!
- * \return the current render state type
+/*
+ * Returns the current render state type.
  */
 Render::StateMask QRenderStateCreatedChangeBase::renderStateType() const
 {