[ignition] Use absolute values for jump offsets

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index 0d23a435a2160f08e4bb46326830292179b5ef42..257e2b2bb01d9e4ee073320c49f6f3b2bf86a271 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -707,6 +707,7 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::Bind(const BytecodeLabel& target,
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::Jump(BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJump(label, 0);
   return *this;
 }
@@ -714,40 +715,47 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::Jump(BytecodeLabel* label) {
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfTrue(BytecodeLabel* label) {
   // The peephole optimizer attempts to simplify JumpIfToBooleanTrue
   // to JumpIfTrue.
+  DCHECK(!label->is_bound());
   OutputJumpIfToBooleanTrue(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfFalse(BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJumpIfToBooleanFalse(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfNull(BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJumpIfNull(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfUndefined(
     BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJumpIfUndefined(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfNotHole(
     BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJumpIfNotHole(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpIfJSReceiver(
     BytecodeLabel* label) {
+  DCHECK(!label->is_bound());
   OutputJumpIfJSReceiver(label, 0);
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::JumpLoop(BytecodeLabel* label,
                                                      int loop_depth) {
+  DCHECK(label->is_bound());
   OutputJumpLoop(label, 0, loop_depth);
   return *this;
 }