[code-reflection] RFR: BytecodeGenerator support of lambdas

[Adam Sotona]

BytecodeGenerator support of lambdas

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Commit messages:
 - quotable lambda generation work in progress
 - quotable lambda generation work in progress
 - quotable lambda generation work in progress
 - quotable lambda generation work in progress
 - lambda generation work in progress
 - lambda generation work in progress
 - BytecodeGenerator work in progress
 - improved printing of InvokeDynamicInstruction and BootstrapMethodsAttribute
 - BytecodeGenerator work in progress

Changes: https://git.openjdk.org/babylon/pull/48/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=48&range=00
  Stats: 367 lines in 5 files changed: 228 ins; 55 del; 84 mod
  Patch: https://git.openjdk.org/babylon/pull/48.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/48/head:pull/48

PR: https://git.openjdk.org/babylon/pull/48