added failOnParseErrors option to validationHelper

[cdietrich]

No description provided.

[cdietrich]

question: does anybody know why we put the code here

data: {
      code: DocumentValidator.ParsingError,
    }

and not into

code at top level (too) see processParsingErrors

[spoenemann]

question: does anybody know why we put the code here and not into code at top level (too) see processParsingErrors

Because the code is meant to be user-facing information, like an error code that they can look up in the user manual of a compiler. We want to use that only internally, so we moved it into data (#1128).

[cdietrich]

my committer paperwork is still stuck somewhere ....