In the BytecodeGraphBuilder we insert a SOFT deopt whenever we see an
IC whose state is UNINITIALIZED, i.e. a LOAD_IC or a STORE_IC. This
greatly reduces the size of the generated graphs (and also helps to
improve generated code quality). However for COMPARE_IC and BINARY_OP_IC
we used to stick in the generic JavaScript node instead, which does
generate code and might block optimizations because its sitting in
the effect chain. This is changed now to always SOFT deopt for
UNINITIALIZED instead, consistently with the other ICs.

Bug: v8:6760
Change-Id: I2ac7469fa86512a2fd909fdde2c6425977694811
Reviewed-on: https://chromium-review.googlesource.com/645858
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47771}