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

src/parsing/pattern-rewriter.cc

Index: src/parsing/pattern-rewriter.cc
diff --git a/src/parsing/pattern-rewriter.cc b/src/parsing/pattern-rewriter.cc
index f3d9bb02a33bec518052372f713aec08ea3ef756..a7f2ed1e2b6959836958a511a1d7b021600c2bc1 100644
--- a/src/parsing/pattern-rewriter.cc
+++ b/src/parsing/pattern-rewriter.cc
@@ -359,7 +359,7 @@ void Parser::PatternRewriter::VisitArrayLiteral(ArrayLiteral* node,
   DCHECK(block_->ignore_completion_value());
 
   auto temp = *temp_var = CreateTempVar(current_value_);
-  auto iterator = CreateTempVar(parser_->GetIterator(
+  auto iterator = CreateTempVar(factory()->NewGetIterator(
       factory()->NewVariableProxy(temp), kNoSourcePosition));
   auto done =
       CreateTempVar(factory()->NewBooleanLiteral(false, kNoSourcePosition));
@@ -673,6 +673,7 @@ NOT_A_PATTERN(ForOfStatement)
 NOT_A_PATTERN(ForStatement)
 NOT_A_PATTERN(FunctionDeclaration)
 NOT_A_PATTERN(FunctionLiteral)
+NOT_A_PATTERN(GetIterator)
 NOT_A_PATTERN(IfStatement)
 NOT_A_PATTERN(Literal)
 NOT_A_PATTERN(NativeFunctionLiteral)