[BitcodeReader] Add missing () to disambiguate precedence. NFC

Author: jroelofs

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

@@ -6370,7 +6370,7 @@ Error BitcodeReader::parseFunctionBody(Function *F) {
       cast<CallInst>(I)->setCallingConv(
           static_cast<CallingConv::ID>((0x7ff & CCInfo) >> bitc::CALL_CCONV));
       CallInst::TailCallKind TCK = CallInst::TCK_None;
-      if (CCInfo & 1 << bitc::CALL_TAIL)
+      if (CCInfo & (1 << bitc::CALL_TAIL))
         TCK = CallInst::TCK_Tail;
       if (CCInfo & (1 << bitc::CALL_MUSTTAIL))
         TCK = CallInst::TCK_MustTail;