cppeditor: Show hints for qmlRegister... diagnostics

This fixes passing the hints from FindExportedCppTypes to
the actual cppeditor so they can be displayed to the
user.

Fixes: QTCREATORBUG-27243
Change-Id: Ibcb68296f044a9c6a96f40945d8a0e964be7f042
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/libs/qmljs/qmljsfindexportedcpptypes.cpp

@@ -334,7 +334,7 @@ protected:
                         _doc->fileName(),
                         line, column,
                         QmlJS::FindExportedCppTypes::tr(
-                            "The module URI cannot be determined by static analysis. The type will be available\n"
+                            "The module URI cannot be determined by static analysis. The type will not be available\n"
                             "globally in the QML editor. You can add a \"// @uri My.Module.Uri\" annotation to let\n"
                             "the QML editor know about a likely URI."));
         }

src/libs/qmljs/qmljslink.cpp

@@ -465,7 +465,8 @@ Import LinkPrivate::importNonFile(const Document::Ptr &doc, const ImportInfo &im
                   "For Qbs projects, declare and set a qmlImportPaths property in your product "
                   "to add import paths.\n"
                   "For qmlproject projects, use the importPaths property to add import paths.\n"
-                  "For CMake projects, make sure QML_IMPORT_PATH variable is in CMakeCache.txt.\n")
+                  "For CMake projects, make sure QML_IMPORT_PATH variable is in CMakeCache.txt.\n"
+                  "For qmlRegister... calls, make sure that you define the Module URI as a string literal.\n")
               .arg(importInfo.name(), m_importPaths.join(QLatin1Char('\n'))));
     }