Fix folder names in client and test (#4360)

* client/rpc/api -> client/rpc-api

* client/util/wasm-builder-runner -> utils/wasm-builder-runner

* client/grafana-data-source -> utils/grafana-data-source

* test/utils -> test-utils

* fix moved path

* Update Cargo.lock

* Update Cargo.lock

substrate/client/rpc-api/src/errors.rs

@@ -0,0 +1,26 @@
+// Copyright 2018-2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+use log::warn;
+
+pub fn internal<E: ::std::fmt::Debug>(e: E) -> jsonrpc_core::Error {
+	warn!("Unknown error: {:?}", e);
+	jsonrpc_core::Error {
+		code: jsonrpc_core::ErrorCode::InternalError,
+		message: "Unknown error occured".into(),
+		data: Some(format!("{:?}", e).into()),
+	}
+}