[code-reflection] Integrated: bld/hatrun fixes after PR 278

[Gary Frost]

I messed up the bld/hatrun launcher scripts on my previous push 

Here I added back in the --add-modules jdk.incubator.code needed for compiling and running

-------------

Commit messages:
 - don't include my pom changes
 - bld/hatrun fixes after PR 278

Changes: https://git.openjdk.org/babylon/pull/279/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=279&range=00
  Stats: 20 lines in 10 files changed: 11 ins; 3 del; 6 mod
  Patch: https://git.openjdk.org/babylon/pull/279.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/279/head:pull/279

PR: https://git.openjdk.org/babylon/pull/279