[ignition] desugar GetIterator() via bytecode rather than via AST

test/cctest/interpreter/bytecode_expectations/Generators.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 wrap: no
 test function name: f
 
 ---
 snippet: "
   function* f() { }
   f();
 "
 frame size: 11
 parameter count: 1
 bytecode array length: 199
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(21),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(1),
                 B(LdaZero),
                 B(TestEqualStrict), R(1), U8(0),
                 B(JumpIfTrue), U8(53),
-                B(LdaSmi), U8(77),
+                B(LdaSmi), U8(78),
                 B(Star), R(2),
                 B(CallRuntime), U16(Runtime::kAbort), R(2), U8(1),
                 B(LdaSmi), U8(-2),
                 B(Star), R(1),
                 B(CreateFunctionContext), U8(2),
                 B(PushContext), R(0),
                 B(Ldar), R(this),
                 B(StaCurrentContextSlot), U8(4),
   /*   11 E> */ B(StackCheck),
                 B(Mov), R(context), R(4),
@@ skipping 92 matching lines @@
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(28),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(1),
                 B(LdaZero),
                 B(TestEqualStrict), R(1), U8(0),
                 B(JumpIfTrue), U8(60),
                 B(LdaSmi), U8(1),
                 B(TestEqualStrict), R(1), U8(0),
                 B(JumpIfTrueConstant), U8(0),
-                B(LdaSmi), U8(77),
+                B(LdaSmi), U8(78),
                 B(Star), R(2),
                 B(CallRuntime), U16(Runtime::kAbort), R(2), U8(1),
                 B(LdaSmi), U8(-2),
                 B(Star), R(1),
                 B(CreateFunctionContext), U8(2),
                 B(PushContext), R(0),
                 B(Ldar), R(this),
                 B(StaCurrentContextSlot), U8(4),
   /*   11 E> */ B(StackCheck),
                 B(Mov), R(context), R(4),
@@ skipping 121 matching lines @@
   [46, 225, 231],
 ]
 
 ---
 snippet: "
   function* f() { for (let x of [42]) yield x }
   f();
 "
 frame size: 17
 parameter count: 1
-bytecode array length: 769
+bytecode array length: 775
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(28),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(3),
                 B(LdaZero),
                 B(TestEqualStrict), R(3), U8(0),
                 B(JumpIfTrue), U8(60),
                 B(LdaSmi), U8(1),
                 B(TestEqualStrict), R(3), U8(0),
                 B(JumpIfTrueConstant), U8(3),
-                B(LdaSmi), U8(77),
+                B(LdaSmi), U8(78),
                 B(Star), R(4),
                 B(CallRuntime), U16(Runtime::kAbort), R(4), U8(1),
                 B(LdaSmi), U8(-2),
                 B(Star), R(3),
                 B(CreateFunctionContext), U8(9),
                 B(PushContext), R(0),
                 B(Ldar), R(this),
                 B(StaCurrentContextSlot), U8(4),
   /*   11 E> */ B(StackCheck),
                 B(Mov), R(context), R(6),
@@ skipping 35 matching lines @@
                 B(Ldar), R(closure),
                 B(CreateBlockContext), U8(0),
                 B(PushContext), R(1),
                 B(LdaTheHole),
                 B(StaCurrentContextSlot), U8(4),
                 B(LdaZero),
                 B(StaContextSlot), R(1), U8(9), U8(0),
                 B(Mov), R(context), R(9),
                 B(Mov), R(context), R(10),
   /*   30 S> */ B(CreateArrayLiteral), U8(1), U8(0), U8(9),
+                B(Star), R(11),
+                B(LdaNamedProperty), R(11), U8(2), U8(2),
                 B(Star), R(12),
-                B(LdaConstant), U8(2),
-  /*   30 E> */ B(LdaKeyedProperty), R(12), U8(4),
-                B(Star), R(11),
-  /*   30 E> */ B(CallProperty), R(11), R(12), U8(1), U8(2),
+                B(CallProperty), R(12), R(11), U8(1), U8(4),
+                B(JumpIfJSReceiver), U8(7),
+                B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
   /*   30 E> */ B(StaContextSlot), R(1), U8(7), U8(0),
                 B(LdaSmi), U8(-2),
                 B(TestEqual), R(3), U8(0),
                 B(JumpIfTrue), U8(18),
                 B(LdaSmi), U8(1),
                 B(TestEqualStrict), R(3), U8(0),
                 B(JumpIfTrueConstant), U8(8),
-                B(LdaSmi), U8(77),
+                B(LdaSmi), U8(78),
                 B(Star), R(11),
                 B(CallRuntime), U16(Runtime::kAbort), R(11), U8(1),
   /*   27 S> */ B(LdaContextSlot), R(1), U8(7), U8(0),
                 B(Star), R(13),
                 B(LdaNamedProperty), R(13), U8(4), U8(8),
                 B(Star), R(12),
   /*   27 E> */ B(CallProperty), R(12), R(13), U8(1), U8(6),
   /*   27 E> */ B(StaContextSlot), R(1), U8(8), U8(0),
                 B(Star), R(11),
                 B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(11), U8(1),
@@ skipping 227 matching lines @@
   /*   44 S> */ B(Return),
                 B(Ldar), R(5),
                 B(ReThrow),
                 B(LdaUndefined),
   /*   44 S> */ B(Return),
 ]
 constant pool: [
   FIXED_ARRAY_TYPE,
   FIXED_ARRAY_TYPE,
   SYMBOL_TYPE,
-  Smi [149],
+  Smi [155],
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
   FIXED_ARRAY_TYPE,
   Smi [135],
   Smi [152],
   ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
   FIXED_ARRAY_TYPE,
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["function"],
   ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
   FIXED_ARRAY_TYPE,
   Smi [133],
   Smi [159],
-  Smi [579],
+  Smi [585],
 ]
 handlers: [
-  [46, 688, 694],
-  [143, 438, 444],
-  [146, 394, 396],
-  [540, 556, 558],
+  [46, 694, 700],
+  [143, 444, 450],
+  [146, 400, 402],
+  [546, 562, 564],
 ]