RFR: 8302262: Remove -XX:SuppressErrorAt develop option

[Kim Barrett]

On Sat, 11 Feb 2023 11:32:07 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Stupid question, what happens if a function is decorated with noreturn and you return? E.g. in case of the `Debugging` switch? Or by just falling off the function, failing to call exit or abort?

Undefined behavior.  gcc warns about this (with the warning levels we currently have).  I didn't experiment with others.

The `Debugging` variable is another thing that will need to be addressed in order to make the failed assertion reporters
noreturn.  Also Windows-only `UseOSErrorReporting`.  (My in-progress prototype for JDK-8302189 retains those
features in a different form, rather than outright deletion as being done here for `SuppressErrorAt`.)

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PR: https://git.openjdk.org/jdk/pull/12521