[lworld] RFR: 8328010: [lworld] C1 assertion failure in LIRAssembler::patching_epilog

[Frederic Parain]

Fixes in C1 instance creation code.
Compiler tests updates.

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

Commit messages:
 - C1 fixes in instance creation and tests arguments update

Changes: https://git.openjdk.org/valhalla/pull/1046/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1046&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328010
  Stats: 375 lines in 57 files changed: 73 ins; 19 del; 283 mod
  Patch: https://git.openjdk.org/valhalla/pull/1046.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1046/head:pull/1046

PR: https://git.openjdk.org/valhalla/pull/1046