Core: Highlight property names with single quotes in JsonUtil error messages

[nastra]

Sometimes one has to read the error message twice to figure out which property name was affected, thus highlighting the property name in the error message should make this clearer.

[rdblue]

I think it's better to put names like this after a : instead of adding characters that can get copied and moved to other places. Putting names after : still allows you to see when they are empty or null (e.g. Cannot find field: ) without adding non-whitespace characters.

[nastra]

I think it's better to put names like this after a : instead of adding characters that can get copied and moved to other places. Putting names after : still allows you to see when they are empty or null (e.g. Cannot find field: ) without adding non-whitespace characters.

That makes sense, but how would we want to handle something like Cannot parse %s from non-array value: %s? I feel that Cannot parse '%s' from non-array value: %s improves readability. Or we could add the property name to the end in this particular case to have Cannot parse from non-array value: %s: %s.

[rdblue]

we could add the property name to the end in this particular case to have Cannot parse from non-array value: %s: %s.

I prefer this approach to quotes. When needed, reword to make it clear that something is missing.

[nastra]

@rdblue updated and pushed