RFR (L) JDK-8230505: Replace JVM type comparisons to T_OBJECT and T_ARRAY with call to is_reference_type

[dean.long at oracle.com]

This makes me wish we could call BasicType::is_reference_type() :-)

I was going to suggest replacing the small number of 
"is_reference_type(result->get_type()))" with 
"result->is_reference_type()", but maybe it's not worth adding a helper 
method for so few uses.  It does look more "OO" however.

dl

On 9/11/19 8:29 AM, Lois Foltan wrote:
> Please review the following change to call is_reference_type() when 
> checking if a type is a T_OBJECT or a T_ARRAY.
>
> open webrev at: 
> http://cr.openjdk.java.net/~lfoltan/bug_jdk8230505.0/webrev/index.html
> bug link: https://bugs.openjdk.java.net/browse/JDK-8230505
>
> Builds: all tier1 builds, did build with Shenandoah GC, and Solaris 
> builds
> Testing: hs-tier1-4 & jdktier1-2 (all platforms), hs-tier5-8 (linux-x64)
>
> Thanks,
> Lois
>
>