[aarch64-port-dev ] discussion: two possible 8u backport patches

[Yangfei (Felix)]

Hi,

When running 8u jtreg hotspot test with -XX:+VerifyOops using fastdebug build, I find issue [1] was triggered for more than 200 test cases. 
And I am expecting more triggering of issue [1] with fix for issue [2] without which we may miss verifying some oops. 
As these two issues only affects debug version, I am not quite sure if they are valid candidates for 8u backporting. 
Since they are aarch64-specific, so I send here for some initial discussion before posting on jdk8u-dev mailing list. 
Personally, I am inclined to think that we should have them in 8u.  This will ensure/improve testing effectiveness for 8u aarch64. 
We are continuously carrying out building and testing for aarch64 fastdebug build internally. 

8247350 : [aarch64] assert(false) failed: wrong size of mach node
8260029 : aarch64: fix typo in verify_oop_array

1. https://bugs.openjdk.java.net/browse/JDK-8247350
2. https://bugs.openjdk.java.net/browse/JDK-8260029 

Thanks,
Felix