[jdk11u-dev] RFR: 8222251: preflow visitor is not visiting lambda expressions

[Anton Kozlov]

Backport a regression fix after JDK-8203277

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Commit messages:
 - Backport 40155b14cdbc5690469b1d8869ae0f5cdb4b0218

Changes: https://git.openjdk.org/jdk11u-dev/pull/1484/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1484&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8222251
  Stats: 65 lines in 2 files changed: 64 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1484.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1484/head:pull/1484

PR: https://git.openjdk.org/jdk11u-dev/pull/1484