Adpat loplugin:typedefparam to AttributedType

...as seen by clang-cl when there are function parameters of function pointer
type involving SAL_CALL

Change-Id: Ie35f00d4e15ca777b14dd5968cdbd97e43bca1a1
Reviewed-on: https://gerrit.libreoffice.org/69789
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

compilerplugins/clang/typedefparam.cxx

@@ -273,6 +273,13 @@ static bool areTypesEqual(QualType lhs, QualType rhs)
             return false;
         return areTypesEqual(lhsDecayed->getAdjustedType(), rhsDecayed->getAdjustedType());
     }
+    if (auto lhsAttr = dyn_cast<AttributedType>(lhsType))
+    {
+        auto rhsAttr = dyn_cast<AttributedType>(rhsType);
+        if (!rhsAttr)
+            return false;
+        return areTypesEqual(lhsAttr->getModifiedType(), rhsAttr->getModifiedType());
+    }
     return lhsType == rhsType;
 }