Make sure to flush the stream to make sure the string is up to date when we query its size.

llvm-svn: 247175

lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp

@@ -557,6 +557,7 @@ DisassemblerLLVMC::LLVMCDisassembler::PrintMCInst (llvm::MCInst &mc_inst,
     llvm::raw_svector_ostream inst_stream(inst_string);
     m_instr_printer_ap->printInst (&mc_inst, inst_stream, unused_annotations,
                                    *m_subtarget_info_ap);
+    inst_stream.flush();
     const size_t output_size = std::min(dst_len - 1, inst_string.size());
     std::memcpy(dst, inst_string.data(), output_size);
     dst[output_size] = '\0';