RFR: 8278289: Drop G1BlockOffsetTablePart::_object_can_span

Mon Dec 6 10:30:31 UTC 2021

Simple change of dropping a debug-only field. Instead, the assert logic queries for the region type directly.

Test: tier1-5

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Commit messages:
 - bot-can-span

Changes: https://git.openjdk.java.net/jdk/pull/6718/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6718&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278289
  Stats: 22 lines in 4 files changed: 4 ins; 15 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6718.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6718/head:pull/6718

PR: https://git.openjdk.java.net/jdk/pull/6718