In jumbo builds, many files are compiled in the same translation
unit and share the same anonymous namespace. Now both gap_resolver.cc and
register-allocator.cc defined kFloat32Bit (a mask representation
of MachineRepresentation::kFloat32) which clashed if those
files were compiled together.

This patch inlines and removed one of the constants.

Change-Id: Ic79e077e62ce9866b6201ec61a9df1e66d5e4a13
Reviewed-on: https://chromium-review.googlesource.com/1206572Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#55677}