Revert "Small optimization for recursive calls: avoid dex cache."

Fails on target.

This reverts commit 390f59f9bec64fd81b05e796dfaeb03ab6d4cc81.

Change-Id: Ic3865b8897068ba20df0fbc2bcf561faf6c290c1
Merge "Revert "Small optimization for recursive calls: avoid dex cache.""