[crac] RFR: Handle C/R in BasicImageReader (via reflection)

[Radim Vansa]

Fixes checkpoint failure due to open FD to modules on x86 (the Java code behaves differently on 32bit and 64bt).

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

Commit messages:
 - Handle C/R in BasicImageReader (via reflection)

Changes: https://git.openjdk.org/crac/pull/124/files
 Webrev: https://webrevs.openjdk.org/?repo=crac&pr=124&range=00
  Stats: 112 lines in 1 file changed: 86 ins; 22 del; 4 mod
  Patch: https://git.openjdk.org/crac/pull/124.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/124/head:pull/124

PR: https://git.openjdk.org/crac/pull/124