Not nice error in the interactions window

[gus-massa]

Reproduction steps (Windows?)

• Open DrRacket
• Go to the "Choose Language" Menu. Select "The Racket Language" and "Not debugging or profiling"
• Click "OK"
• Close DrRacket
• Open DrRacket again
• Go to the interactions windows and run (+ "1" "1")

The error is:

 ..\..\Program Files\Racket\share\pkgs\drracket-core-lib\drracket\private\rep.rkt:1213:22: +: contract violation
   expected: number?
   given: "1"

The error shoud be:

+: contract violation
  expected: number?
  given: "1"

If I click the green "Run" arrow on the top right, I get the nice error.
If I enable debugging, I ge the nice error.

<guess>My guess is that the initial setup of the language in the definition window is not setting some promp or contract, and not-debugging removes enough function frames to get a bad error location. I don't know enough of the details to be sure, this guess may be very wrong or nonsensical.</guess>

[rfindler]

Just to make sure I'm understanding, the issue is that the internal source location showing up at the start of the first line of the error message, right?

[gus-massa]

@rfindler Exactly.