RFR: 8255216: Change _directive->BreakAtCompileOption to env()->break_at_compile() [v7]

[Paul Hohensee]

On Fri, 22 Jan 2021 09:39:06 GMT, Dan <github.com+7991079+danlemmond at openjdk.org> wrote:

>> _break_at_compile was no longer in use after changes to compile.cpp.
>> Change compile.cpp and c1_Compilation.cpp to use env()->break_at_compile() instead
>> to make that code no longer dead.
>> No new code, and Tier1 tests succeed after code is removed.
>> 
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8255216
>
> Dan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update compileBroker to use BreakAtCompileOption
>   
>   BreakAtExecuteOption should not be used here, instead use
>   BreakAtCompileOption

Marked as reviewed by phh (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/1806