Different behavior of CFE and the analyzer when constant depends on itself

[sgrekhov]

The following code produces an error in the analyzer but no issues in VM.

const int? one = 2 > 1 ? null : one; // Analyzer error: The compile-time constant expression depends on itself

main() {
  print(one); // prints null
}

If to change the example to really invoke the constant then VM produces an error as well.

const int? two = 2 > 1 ? two: null; // Error: Constant evaluation error. Context: Constant expression depends on itself.

main() {
  print(two);
}

@eernstg @lrhn does in the first case the constant really depends on itself?

[dart-github-bot]

Summary: Analyzer detects self-referential constant one, but the VM doesn't, though a modified example (two) triggers VM error. Inconsistency needs investigation.

[mraleph]

cc @eernstg