Deoptimization expects the context and function marker on the stack.
To let the register allocator control spilling of the live ranges
corresponding to these 2 operands, we need their use to be represented
accurately.

BUG= v8:4533
LOG=N

Review URL: https://codereview.chromium.org/1506903002

Cr-Commit-Position: refs/heads/master@{#32666}