Fix double error message

Author: DrSergei

lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp

@@ -89,13 +89,15 @@ DataBreakpointInfoRequestHandler::Run(
     }
   } else if (args.asAddress) {
     size = llvm::utostr(args.bytes.value_or(dap.target.GetAddressByteSize()));
-    lldb::addr_t load_addr;
+    lldb::addr_t load_addr = LLDB_INVALID_ADDRESS;
     if (llvm::StringRef(args.name).getAsInteger<lldb::addr_t>(0, load_addr))
-      return llvm::make_error<DAPError>(args.name + " is not a valid address");
+      return llvm::make_error<DAPError>(args.name + " is not a valid address",
+                                        llvm::inconvertibleErrorCode(), false);
     addr = llvm::utohexstr(load_addr);
     if (!IsRW(dap, load_addr))
       return llvm::make_error<DAPError>("memory region for address " + addr +
-                                        " has no read or write permissions");
+                                            " has no read or write permissions",
+                                        llvm::inconvertibleErrorCode(), false);
   } else {
     is_data_ok = false;
     response.description = "variable not found: " + args.name;