RFR: 8338156: Fix -Wzero-as-null-pointer-constant warnings in jvmciCompilerToVM.cpp [v2]

[Kim Barrett]

> Please review this change to remove -Wzero-as-null-pointer-constant warnings
> in jvmciCompilerToVM.cpp. We're changing uses of _0 suffixed exception macros
> to instead use the corresponding _NULL suffixed macros where appropriate.
> 
> Testing: mach5 tier1

Kim Barrett has updated the pull request incrementally with one additional commit since the last revision:

  fix indent in jvmciCompilerToVM.cpp

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20538/files
  - new: https://git.openjdk.org/jdk/pull/20538/files/fdf8f929..a97ee392

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20538&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20538&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/20538.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20538/head:pull/20538

PR: https://git.openjdk.org/jdk/pull/20538