--debug-code causes full-codegen on arm64 to emit different number
of calls, which confuses the debugger when on-stack replacing code
with recompiled debug version on-stack.

BUG=chromium:507070
TBR=mstarzinger@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1228353004

Cr-Commit-Position: refs/heads/master@{#29638}