[code-reflection] Integrated: Improve sanity checking

[Gary Frost]

Added license and whitespace checking to sanity.java

So assuming you env is correct  (PATH and JAVA_HOME) 


java sanity.java 

Will look for common errors.

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Commit messages:
 - Improve sanity checking

Changes: https://git.openjdk.org/babylon/pull/200/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=200&range=00
  Stats: 85 lines in 4 files changed: 45 ins; 9 del; 31 mod
  Patch: https://git.openjdk.org/babylon/pull/200.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/200/head:pull/200

PR: https://git.openjdk.org/babylon/pull/200