RFR: 8294190: Incorrect check messages in SharedRuntime::generate_uncommon_trap_blob

[Aleksey Shipilev]

The checks added by [JDK-8141133](https://bugs.openjdk.org/browse/JDK-8141133) are not consistent. The blocks that verify `Deoptimization::Unpack_uncommon_trap` kind are saying "last_Java_fp not cleared" for some arches.

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jdk/pull/10388/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10388&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294190
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10388.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10388/head:pull/10388

PR: https://git.openjdk.org/jdk/pull/10388