[ignition] desugar async functions/generators/modules in BytecodeGenerator

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index 5ce553186c67a5ccec72729d6d553b2254602932..30e2a3a256969727e015adf851f0a3760291ec0d 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -2597,6 +2597,12 @@ class FunctionLiteral final : public Expression {
   const AstString* raw_name() const { return raw_name_; }
   void set_raw_name(const AstString* name) { raw_name_ = name; }
   DeclarationScope* scope() const { return scope_; }
+
+  // AST desugaring of initialization of non-simple parameters. If non-null,
+  // forces Ignition/TF pipeline.
+  Block* parameter_init_block() const { return parameter_init_block_; }
+  void set_parameter_init_block(Block* block) { parameter_init_block_ = block; }
+
   ZoneList<Statement*>* body() const { return body_; }
   void set_function_token_position(int pos) { function_token_position_ = pos; }
   int function_token_position() const { return function_token_position_; }
@@ -2747,6 +2753,7 @@ class FunctionLiteral final : public Expression {
         has_braces_(has_braces),
         raw_name_(name),
         scope_(scope),
+        parameter_init_block_(nullptr),
         body_(body),
         raw_inferred_name_(ast_value_factory->empty_string()),
         ast_properties_(zone),
@@ -2780,6 +2787,7 @@ class FunctionLiteral final : public Expression {
 
   const AstString* raw_name_;
   DeclarationScope* scope_;
+  Block* parameter_init_block_;
   ZoneList<Statement*>* body_;
   const AstString* raw_inferred_name_;
   Handle<String> inferred_name_;