[clang-tidy] Use bool literals

See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-bool-literals.html.

Bug: v8:10488
Change-Id: I9de63b954f99a1725b5d20ff7bb3f416cf22131a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233408Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68242}

src/compiler/backend/register-allocator.cc

@@ -3496,7 +3496,7 @@ void LinearScanAllocator::ComputeStateFromManyPredecessors(
   // Choose the live ranges from the majority.
   const size_t majority =
       (current_block->PredecessorCount() + 2 - deferred_blocks) / 2;
-  bool taken_registers[RegisterConfiguration::kMaxRegisters] = {0};
+  bool taken_registers[RegisterConfiguration::kMaxRegisters] = {false};
   auto assign_to_live = [this, counts, majority](
                             std::function<bool(TopLevelLiveRange*)> filter,
                             RangeWithRegisterSet* to_be_live,