RFR 8235225: Replace CHECK_0 with CHECK_NULL for non-integer returning methods

[Mikael Vidstedt]

Nice! Looks good to me!

I’m assuming we still don’t know of a way to have the compiler warn/error when the types don’t match?

Cheers,
Mikael 

> On Feb 26, 2020, at 5:52 AM, Harold Seigel <harold.seigel at oracle.com> wrote:
> 
> Hi,
> 
> Please review this change to replace CHECK_0 with CHECK_NULL in functions that return oops or pointers and replace CHECK_0 with CHECK_false in functions that return bool.
> 
> Open Webrev: http://cr.openjdk.java.net/~hseigel/bug_8235225/webrev/index.html
> 
> JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8235225
> 
> The fix was regression tested by running Mach5 tiers 1 and 2 tests and builds on Linux-x64, Solaris, Windows, and Mac OS X, by running Mach5 tiers 3-5 tests on Linux-x64, and JCK lang and VM tests on Linux-x64.
> 
> Thanks, Harold
>