[ignition] Use absolute values for jump offsets

test/unittests/interpreter/bytecode-array-writer-unittest.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/v8.h"
 
 #include "src/api.h"
 #include "src/factory.h"
 #include "src/interpreter/bytecode-array-writer.h"
 #include "src/interpreter/bytecode-label.h"
@@ skipping 150 matching lines @@
       /* 20       */ B(JumpIfFalse), U8(24),
       /* 22       */ B(ForInNext), R8(3), R8(7), R8(4), U8(1),
       /* 27       */ B(JumpIfUndefined), U8(10),
       /* 29       */ B(Star), R8(0),
       /* 31 54 E> */ B(StackCheck),
       /* 32       */ B(Ldar), R8(0),
       /* 34       */ B(Star), R8(2),
       /* 36 85 S> */ B(Return),
       /* 37       */ B(ForInStep), R8(7),
       /* 39       */ B(Star), R8(7),
-      /* 41       */ B(JumpLoop), U8(-24), U8(0),
+      /* 41       */ B(JumpLoop), U8(24), U8(0),
       /* 44       */ B(LdaUndefined),
       /* 45 85 S> */ B(Return),
       // clang-format on
   };
 
   static const PositionTableEntry expected_positions[] = {
       {0, 30, false}, {1, 42, true},   {3, 42, false}, {6, 68, true},
       {18, 63, true}, {32, 54, false}, {37, 85, true}, {46, 85, true}};
 
   BytecodeLabel back_jump, jump_for_in, jump_end_1, jump_end_2, jump_end_3;
@@ skipping 46 matching lines @@
              expected.source_position);
     CHECK_EQ(source_iterator.is_statement(), expected.is_statement);
     source_iterator.Advance();
   }
   CHECK(source_iterator.done());
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8