[11u] RFR: 8247350: [aarch64] assert(false) failed: wrong size of mach node

[Lindenmaier, Goetz]

Hi,

I would like to downport this for parity with 11.0.9-oracle.

I had to resolve the assert coding in output.cpp:
http://cr.openjdk.java.net/~goetz/wr20/8247350-aarch_node_size-jdk11/01/

Please review.

https://bugs.openjdk.java.net/browse/JDK-8247350
https://hg.openjdk.java.net/jdk/jdk15/rev/1c81917f228b

Best regards,
  Goetz