Remove redundant source position information in RelocInfo

src/arm64/assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
@@ skipping 572 matching lines @@
                                reinterpret_cast<byte*>(pc_));
   constpool_.Clear();
   next_constant_pool_check_ = 0;
   next_veneer_pool_check_ = kMaxInt;
   no_const_pool_before_ = 0;
   ClearRecordedAstId();
 }
 
 
 void Assembler::GetCode(CodeDesc* desc) {
+  reloc_info_writer.Finish();
   // Emit constant pool if necessary.
   CheckConstPool(true, false);
   DCHECK(constpool_.IsEmpty());
 
   // Set up code descriptor.
   if (desc) {
     desc->buffer = reinterpret_cast<byte*>(buffer_);
     desc->buffer_size = buffer_size_;
     desc->instr_size = pc_offset();
     desc->reloc_size = (reinterpret_cast<byte*>(buffer_) + buffer_size_) -
@@ skipping 2552 matching lines @@
   movz(scratch, (target_offset >> 16) & 0xFFFF, 16);
   movk(scratch, (target_offset >> 32) & 0xFFFF, 32);
   DCHECK((target_offset >> 48) == 0);
   add(rd, rd, scratch);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64