RFR: CODETOOLS-7903307: Move ASM dependent classes to a different package

[Leonid Kuskov]

On Thu, 15 Sep 2022 15:48:08 GMT, Alexandre Iline <shurailine at openjdk.org> wrote:

> This change is moving all classes which directly depend on ASM into a sub-package. This is done in a separate step to allow a diff which would be possible to review line by line, to make sure there are no changes in behavior.
> To accommodate the move:
> 1. Bunch of imports, obviously
> 2. Bunch of methods increased visibility to public, or, in rare cases, to protected
> 3. A few field usages are replaced with getters.
> Further refactoring is due, see the bug for more information.

LGTM

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PR: https://git.openjdk.org/jcov/pull/24