Fix compile errors on parse errors

src/http/server.zig

@@ -38,7 +38,7 @@ const HttpServer = struct {
             errdefer conn.close();
 
             const req = http.Request.parse(alloc, conn.stream.reader()) catch |err| {
-                _ = handleError(conn.stream.writer(), err);
+                handleError(conn.stream.writer(), err) catch unreachable;
                 continue;
             };
 
@@ -51,17 +51,15 @@ const HttpServer = struct {
     }
 };
 
+// TODO: We should get more specific about what type of errors can happen
 fn handleError(writer: anytype, err: anyerror) !void {
     const status: http.Status = switch (err) {
         error.BadRequest => .bad_request,
-        error.MethodNotImplemented => .method_not_implemented,
-        error.UnknownProtocol => .unknown_protocol,
         error.UnsupportedMediaType => .unsupported_media_type,
-        error.RequestEntityTooLarge => .request_entity_too_large,
         error.HttpVersionNotSupported => .http_version_not_supported,
 
-        else => err,
+        else => return err,
     };
 
-    try writer.print("HTTP/1.1 {} {}\r\n\r\n", .{ @enumToInt(status), status.phrase() });
+    try writer.print("HTTP/1.1 {} {s}\r\n\r\n", .{ @enumToInt(status), status.phrase() });
 }