Wish Smart strings: missing starting/ending $ should trigger a warning

    Log($"The time is: ${DateTime.Time(DateTime.now)}"$)  'correct one'
    'following two incorrect lines don't cause any error or warning:
    Log("The time is: ${DateTime.Time(DateTime.now)}"$) 'missing the starting $
    Log($"The time is: ${DateTime.Time(DateTime.now)}") 'missing the ending $

Log("toby"$$)   'toby
Log("toby"$)    'toby
Log($"toby"$)   'toby
Log($"toby"$$)  'toby

Log($"toby")

Log("The time is: ${DateTime.Time(DateTime.now)}"$)
'The above line outputs: "The time is: ${DateTime.Time(DateTime.now)
'while "The time is: 12:34:56", or similar, is expected.