RFR: 8299254: Support dealing with standard assert macro

[Xue-Lei Andrew Fan]

On Thu, 22 Dec 2022 23:05:03 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to provide and use mechanisms for dealing with uses
> of the standard assert macro (from <assert.h> or <cassert>) in 3rd party code
> that we use in HotSpot.
> 
> We provide a pair of utility header files, to be included before and after a
> header that may use (and so include) the standard assert macro.  These new
> headers provide a scope in which the HotSpot assert macro is not defined, and
> then reinstated after.
> 
> We also define NDEBUG in release builds of HotSpot, so any uses of the
> standard assert macro in such 3rd party code will be disabled.
> 
> Finally, we use the new utility headers in some gtests and in our gtest
> wrapper header (unittest.hpp), eliminating problems the gtest implementation
> and with some versions of some standard libraries that the tests use.
> 
> Testing:
> mach5 tier1

The patch passed for my build on MacOSX13.1/M1 (See JDK-8299380).  Thanks!

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Marked as reviewed by xuelei (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11770