t8266-invalid-interp.scala:4: error: Trailing '\' escapes nothing.
    f"a\",
       ^
t8266-invalid-interp.scala:5: error: invalid escape character at index 1 in "a\xc"
    f"a\xc",
       ^
t8266-invalid-interp.scala:7: error: invalid escape character at index 1 in "a\vc"
    f"a\vc"
       ^
three errors found