RFR: 8315369: [JVMCI] failure to attach to a libgraal isolate during shutdown should not be fatal

[Doug Simon]

This PR moves handling of errors in some JVMCIEnv constructors to the caller. This avoids VM crashes in contexts where errors are recoverable, such as the problem of running out of file descriptors described in the JBS issue for this PR.

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

Commit messages:
 - make caller handle error in JVMCIEnv constructor

Changes: https://git.openjdk.org/jdk/pull/15542/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15542&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315369
  Stats: 169 lines in 7 files changed: 59 ins; 38 del; 72 mod
  Patch: https://git.openjdk.org/jdk/pull/15542.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15542/head:pull/15542

PR: https://git.openjdk.org/jdk/pull/15542