RFR: 8344708: Compiler Implementation of Module Import Declarations [v8]

[Jan Lahoda]

> This is a patch to finalize the module imports feature. Please see:
> https://bugs.openjdk.org/browse/JDK-8344700

Jan Lahoda has updated the pull request incrementally with one additional commit since the last revision:

  Reflecting review feedback.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/23801/files
  - new: https://git.openjdk.org/jdk/pull/23801/files/da39d0ef..4f957556

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23801&range=07
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23801&range=06-07

  Stats: 70 lines in 2 files changed: 35 ins; 17 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/23801.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23801/head:pull/23801

PR: https://git.openjdk.org/jdk/pull/23801