stringinterpolation_macro-neg.scala:8: error: too few parts
  new StringContext().f()
  ^
stringinterpolation_macro-neg.scala:9: error: too few arguments for interpolated string
  new StringContext("", " is ", "%2d years old").f(s)
                                                   ^
stringinterpolation_macro-neg.scala:10: error: too many arguments for interpolated string
  new StringContext("", " is ", "%2d years old").f(s, d, d)
                                                         ^
stringinterpolation_macro-neg.scala:11: error: too few arguments for interpolated string
  new StringContext("", "").f()
                             ^
stringinterpolation_macro-neg.scala:14: error: type mismatch;
 found   : String
 required: Boolean
  f"$s%b"
     ^
stringinterpolation_macro-neg.scala:15: error: type mismatch;
 found   : String
 required: Char
  f"$s%c"
     ^
stringinterpolation_macro-neg.scala:16: error: type mismatch;
 found   : Double
 required: Char
  f"$f%c"
     ^
stringinterpolation_macro-neg.scala:17: error: type mismatch;
 found   : String
 required: Int
  f"$s%x"
     ^
stringinterpolation_macro-neg.scala:18: error: type mismatch;
 found   : Boolean
 required: Int
  f"$b%d"
     ^
stringinterpolation_macro-neg.scala:19: error: type mismatch;
 found   : String
 required: Int
  f"$s%d"
     ^
stringinterpolation_macro-neg.scala:20: error: type mismatch;
 found   : Double
 required: Int
  f"$f%o"
     ^
stringinterpolation_macro-neg.scala:21: error: type mismatch;
 found   : String
 required: Double
  f"$s%e"
     ^
stringinterpolation_macro-neg.scala:22: error: type mismatch;
 found   : Boolean
 required: Double
  f"$b%f"
     ^
stringinterpolation_macro-neg.scala:27: error: type mismatch;
 found   : String
 required: Int
Note that implicit conversions are not applicable because they are ambiguous:
 both value strToInt2 of type String => Int
 and value strToInt1 of type String => Int
 are possible conversion functions from String to Int
    f"$s%d"
       ^
stringinterpolation_macro-neg.scala:30: error: illegal conversion character
  f"$s%i"
       ^
15 errors found