[BOLT] Follow-up to "Fix incorrect basic block output addresses" (#71630)

In 8244ff6, I've introduced an
assertion that incorrectly used BasicBlock::empty(). Some basic blocks
may contain only pseudo instructions and thus BB->empty() will evaluate
to false, while the actual code size will be zero.

Author: maksfb

bolt/lib/Core/BinaryFunction.cpp

@@ -4176,7 +4176,7 @@ void BinaryFunction::updateOutputValues(const BOLTLinker &Linker) {
         assert(PrevBB->getOutputAddressRange().first <= BBAddress &&
                "Bad output address for basic block.");
         assert((PrevBB->getOutputAddressRange().first != BBAddress ||
-                !hasInstructions() || PrevBB->empty()) &&
+                !hasInstructions() || !PrevBB->getNumNonPseudos()) &&
                "Bad output address for basic block.");
         PrevBB->setOutputEndAddress(BBAddress);
       }