[code-reflection] RFR: Support bytecode generation for invocation of varArg method [v4]

[Mourad Abbay]

> Support bytecode generation for invocation of varArg method.

Mourad Abbay has updated the pull request incrementally with two additional commits since the last revision:

 - Add test for long and double
 - Apply Suggestions

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Changes:
  - all: https://git.openjdk.org/babylon/pull/272/files
  - new: https://git.openjdk.org/babylon/pull/272/files/885a073d..0dfc24a2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=272&range=03
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=272&range=02-03

  Stats: 20 lines in 2 files changed: 12 ins; 2 del; 6 mod
  Patch: https://git.openjdk.org/babylon/pull/272.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/272/head:pull/272

PR: https://git.openjdk.org/babylon/pull/272