fixes for linux

Author: ypopovych

Sources/ScaleCodec/Custom.swift

@@ -39,17 +39,19 @@ extension Encoder {
     }
 }
 
-public func encode<T>(_ value: T, _ custom: CustomEncoderFactory<T, DataEncoder>, reservedCapacity count: Int = 4096) throws -> Data {
-    var encoder = encoder(reservedCapacity: count)
-    try encoder.encode(value, custom)
-    return encoder.output
+public func encode<T>(_ value: T, _ custom: CustomEncoderFactory<T, DataEncoder>,
+                      reservedCapacity count: Int = 4096) throws -> Data
+{
+    var _encoder = encoder(reservedCapacity: count)
+    try _encoder.encode(value, custom)
+    return _encoder.output
 }
 
 public func decode<T>(_ type: T.Type, _ custom: CustomDecoderFactory<T, DataDecoder>, from data: Data) throws -> T {
     return try decode(custom, from: data)
 }
 
 public func decode<T>(_ custom: CustomDecoderFactory<T, DataDecoder>, from data: Data) throws -> T {
-    var decoder = decoder(from: data)
-    return try decoder.decode(custom)
+    var _decoder = decoder(from: data)
+    return try _decoder.decode(custom)
 }

Sources/ScaleCodec/Scale.swift

@@ -19,15 +19,15 @@ public func decoder(from data: Data) -> DataDecoder { DataDecoder(data: data) }
 
 @inlinable
 public func encode<T: Encodable>(_ value: T, reservedCapacity count: Int = 4096) throws -> Data {
-    var encoder = encoder(reservedCapacity: count)
-    try encoder.encode(value)
-    return encoder.output
+    var _encoder = encoder(reservedCapacity: count)
+    try _encoder.encode(value)
+    return _encoder.output
 }
 
 @inlinable
 public func decode<T: Decodable>(from data: Data) throws -> T {
-    var decoder = decoder(from: data)
-    return try decoder.decode()
+    var _decoder = decoder(from: data)
+    return try _decoder.decode()
 }
 
 @inlinable