[turbofan] Fix more -Wsign-compare warnings.

src/eh-frame.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/eh-frame.h"
 
 #include <iomanip>
 #include <ostream>
 
 #if !defined(V8_TARGET_ARCH_X64) && !defined(V8_TARGET_ARCH_ARM) && \
@@ skipping 234 matching lines @@
   static const byte kPadding[] = {nop, nop, nop, nop, nop, nop, nop, nop};
   DCHECK_LE(padding_size, static_cast<int>(sizeof(kPadding)));
   WriteBytes(&kPadding[0], padding_size);
 }
 
 void EhFrameWriter::AdvanceLocation(int pc_offset) {
   DCHECK(writer_state_ == InternalState::kInitialized);
   DCHECK_GE(pc_offset, last_pc_offset_);
   uint32_t delta = pc_offset - last_pc_offset_;
 
-  DCHECK_EQ(delta % EhFrameConstants::kCodeAlignmentFactor, 0);
+  DCHECK_EQ(delta % EhFrameConstants::kCodeAlignmentFactor, 0u);
   uint32_t factored_delta = delta / EhFrameConstants::kCodeAlignmentFactor;
 
   if (factored_delta <= EhFrameConstants::kLocationMask) {
     WriteByte((EhFrameConstants::kLocationTag
                << EhFrameConstants::kLocationMaskSize) |
               (factored_delta & EhFrameConstants::kLocationMask));
   } else if (factored_delta <= kMaxUInt8) {
     WriteOpcode(EhFrameConstants::DwarfOpcodes::kAdvanceLoc1);
     WriteByte(factored_delta);
   } else if (factored_delta <= kMaxUInt16) {
@@ skipping 354 matching lines @@
   const byte* eh_frame_hdr_start =
       fde_terminator_start + EhFrameConstants::kEhFrameTerminatorSize;
   stream << reinterpret_cast<const void*>(eh_frame_hdr_start)
          << "  .eh_frame_hdr\n";
 }
 
 #endif
 
 }  // namespace internal
 }  // namespace v8