RFR: 8302328: [s390x] Simplify asm_assert definition [v3]

[Amit Kumar]

> This PR cleanups some assert statements and specifies branch condition at calling site itself. Remaining asm_assert methods are inlined as well.

Amit Kumar has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 14 commits:

 - Merge branch 'master' into simplify_assert
 - added id to illtrap
 - address lutz comment & revert inlining
 - Revert "inline asm_assert"
 - Revert "inlined assert method"
 - Revert "added inline keyword before function implementation"
 - added inline keyword before function implementation
 - inlined assert method
 - relocation code shortening
 - inline asm_assert
 - ... and 4 more: https://git.openjdk.org/jdk/compare/896207de...cbfe5172

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Changes: https://git.openjdk.org/jdk/pull/12822/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12822&range=02
  Stats: 87 lines in 9 files changed: 7 ins; 39 del; 41 mod
  Patch: https://git.openjdk.org/jdk/pull/12822.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/12822/head:pull/12822

PR: https://git.openjdk.org/jdk/pull/12822