8382627: Shenandoah: assert(old_reserve_result + young_reserve_result <= old_available + young_available) failed

[kdnilsen]

Reset evacuation at the start of an abbreviated cycle. These values are normally set by choose_collection_set_from_regiondata(). If we don't choose a collection set, these hold non-sensical values that may result in an assertion failure.

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Issue

• JDK-8382627: Shenandoah: assert(old_reserve_result + young_reserve_result <= old_available + young_available) failed (Bug - P3)

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[mlbridge]

Webrevs

• 01: Full - Incremental (02159b8a)
• 00: Full (45d5da0a)

[pengxiaolong]

There should be header order issue here, shenandoahYoungGeneration.hpp should be placed after shenandoahTrace.hpp.