Have AreOptimizationsDisabled to go through DAC

[mikelle-rogers]

Rather than using an IPCEvent to see if code optimizations are disabled, go through the DAC to collect this information.

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Issue Details

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Rather than using an IPCEvent to see if code optimizations are disabled, go through the DAC to collect this information.

Author:	mikelle-rogers
Assignees:	mikelle-rogers
Labels:	area-Diagnostics-coreclr
Milestone:	8.0.0