[ignition] Expect 'I' for signed bytecode operands

test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden

Index: test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden
diff --git a/test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden b/test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden
index 2b8f6e20cd323f441a70b651b1931a3bb778f5f9..61915b27ead6b941fd6ee05b0eb4e302cdf58093 100644
--- a/test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden
+++ b/test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden
@@ -22,7 +22,7 @@ bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaZero),
                 B(Star), R(0),
-  /*   56 S> */ B(LdaSmi), U8(1),
+  /*   56 S> */ B(LdaSmi), I8(1),
   /*   62 E> */ B(Add), R(0), U8(2),
                 B(Star), R(0),
   /*   69 S> */ B(Jump), U8(2),
@@ -56,13 +56,13 @@ bytecodes: [
                 B(Star), R(0),
   /*   71 S> */ B(LdaZero),
                 B(Star), R(1),
-  /*   76 S> */ B(LdaSmi), U8(10),
+  /*   76 S> */ B(LdaSmi), I8(10),
   /*   76 E> */ B(TestLessThan), R(1), U8(2),
                 B(JumpIfFalse), U8(54),
   /*   58 E> */ B(StackCheck),
   /*  106 S> */ B(LdaZero),
                 B(Star), R(2),
-  /*  111 S> */ B(LdaSmi), U8(3),
+  /*  111 S> */ B(LdaSmi), I8(3),
   /*  111 E> */ B(TestLessThan), R(2), U8(4),
                 B(JumpIfFalse), U8(34),
   /*   93 E> */ B(StackCheck),
@@ -72,18 +72,18 @@ bytecodes: [
   /*  142 S> */ B(Ldar), R(2),
   /*  148 E> */ B(Add), R(1), U8(7),
                 B(Star), R(3),
-                B(LdaSmi), U8(12),
+                B(LdaSmi), I8(12),
   /*  152 E> */ B(TestEqual), R(3), U8(8),
                 B(JumpIfFalse), U8(4),
   /*  161 S> */ B(Jump), U8(20),
   /*  118 S> */ B(Ldar), R(2),
                 B(Inc), U8(5),
                 B(Star), R(2),
-                B(JumpLoop), U8(36), U8(1),
+                B(JumpLoop), U8(36), I8(1),
   /*   84 S> */ B(Ldar), R(1),
                 B(Inc), U8(3),
                 B(Star), R(1),
-                B(JumpLoop), U8(56), U8(0),
+                B(JumpLoop), U8(56), I8(0),
   /*  188 S> */ B(Ldar), R(0),
   /*  200 S> */ B(Return),
 ]
@@ -112,7 +112,7 @@ bytecodes: [
                 B(StaCurrentContextSlot), U8(4),
                 B(CreateClosure), U8(1), U8(2), U8(2),
                 B(Star), R(0),
-  /*   53 S> */ B(LdaSmi), U8(10),
+  /*   53 S> */ B(LdaSmi), I8(10),
   /*   53 E> */ B(StaCurrentContextSlot), U8(4),
                 B(Mov), R(0), R(1),
                 B(Ldar), R(0),
@@ -150,7 +150,7 @@ bytecodes: [
                 B(LdaTheHole),
                 B(StaCurrentContextSlot), U8(4),
   /*   30 E> */ B(StackCheck),
-  /*   42 S> */ B(LdaSmi), U8(1),
+  /*   42 S> */ B(LdaSmi), I8(1),
   /*   42 E> */ B(StaCurrentContextSlot), U8(4),
                 B(Ldar), R(closure),
                 B(CreateBlockContext), U8(0),
@@ -159,17 +159,17 @@ bytecodes: [
                 B(StaCurrentContextSlot), U8(4),
                 B(CreateClosure), U8(1), U8(2), U8(2),
                 B(Star), R(0),
-  /*   76 S> */ B(LdaSmi), U8(2),
+  /*   76 S> */ B(LdaSmi), I8(2),
   /*   76 E> */ B(StaCurrentContextSlot), U8(4),
                 B(Mov), R(0), R(1),
   /*  118 S> */ B(LdaCurrentContextSlot), U8(4),
                 B(JumpIfToBooleanFalse), U8(6),
   /*  125 S> */ B(PopContext), R(3),
                 B(Jump), U8(8),
-  /*  142 S> */ B(LdaSmi), U8(3),
+  /*  142 S> */ B(LdaSmi), I8(3),
   /*  144 E> */ B(StaCurrentContextSlot), U8(4),
                 B(PopContext), R(3),
-  /*  155 S> */ B(LdaSmi), U8(4),
+  /*  155 S> */ B(LdaSmi), I8(4),
   /*  157 E> */ B(StaCurrentContextSlot), U8(4),
                 B(LdaUndefined),
   /*  162 S> */ B(Return),