RFR: Now using JTReg to run tests.

Thu Jan 5 05:40:48 UTC 2023

Closing InputStream in multiple places.
Brought back some of the logic with input/output locations in Instr.

With this change all tests passed been executed through ant.

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Commit messages:
 - Now using JTReg to run tests.

Changes: https://git.openjdk.org/jcov/pull/36/files
 Webrev: https://webrevs.openjdk.org/?repo=jcov&pr=36&range=00
  Stats: 102 lines in 11 files changed: 45 ins; 27 del; 30 mod
  Patch: https://git.openjdk.org/jcov/pull/36.diff
  Fetch: git fetch https://git.openjdk.org/jcov pull/36/head:pull/36

PR: https://git.openjdk.org/jcov/pull/36