Parse compiler messages properly on Windows

Currently SwiftPM dumps raw JSON data while compiling on Windows instead of the actual build status. After this change the compiler messages are parsed and displayed properly.

Author: egorzhdan

Sources/TSCUtility/JSONMessageStreamingParser.swift

@@ -101,6 +101,11 @@ private extension JSONMessageStreamingParser {
 
     /// Throwing implementation of the parse function.
     func parseImpl<C>(bytes: C) throws where C: Collection, C.Element == UInt8 {
+#if os(Windows)
+        let carriageReturn = UInt8(ascii: "\r")
+        let bytes = bytes.filter { $0 != carriageReturn }
+#endif
+
         switch state {
         case .parsingMessageSize:
             if let newlineIndex = bytes.firstIndex(of: newline) {