syntax = "proto3";

package test;

message M {
    name = 1;
    foo.Bar = 1;

    foo.bar name = 1
    foo.Bar name;
    foo.Bar name 1;
    foo.bar name = 1  // Comment

    foo..bar name = 1;
    foo...bar name = 1;
    foo.bar name. = 1;
}