[code-reflection] RFR: Disallow insertion of a root op in a block [v10]

[Mourad Abbay]

> A root operation shouldn't be inserted in a block. This changes enforce this rule.

Mourad Abbay has updated the pull request incrementally with one additional commit since the last revision:

  Apply suggestions

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Changes:
  - all: https://git.openjdk.org/babylon/pull/425/files
  - new: https://git.openjdk.org/babylon/pull/425/files/3a332897..52f6154c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=425&range=09
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=425&range=08-09

  Stats: 8 lines in 2 files changed: 1 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/babylon/pull/425.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/425/head:pull/425

PR: https://git.openjdk.org/babylon/pull/425