Reset the roProp field of the MInstrState
Summary:
We need to reset the roProp field of the MInstrState for each new member op sequence.
- Reset to false on Base before we might modify it. Note: we store false prior to functions that might store true to the roProp field. These stores should be elided during store elimination once these mutations are implemented as explicit `StMROProp` in the next diff.
BaseL/BaseSC/BaseG/BaseH/BaseC
**Note:** I won't land this diff until the full stack of diffs shows these stores are eliminated in cases we don't enforce readonly.
Reviewed By: ricklavoie
Differential Revision:
D31091984
fbshipit-source-id:
debec21b01ecf0c0e98bdf3262364554ce92c533