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

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index 001911fcef78776f979d51bb6faf346f67b4c2b1..689148d62b156fcb348e776c083ce503747b5c99 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -664,15 +664,42 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
 
   if (IsResumableFunction(node->kind())) {
     DisableFullCodegenAndCrankshaft(kGenerator);
+
+    if (IsAsyncFunction(node->kind())) {
+      // Set initial catch_prediction to HandlerTable::ASYNC_AWAIT for the
+      // wrapper try/catch block not present in the AST.
+      catch_prediction_ = HandlerTable::ASYNC_AWAIT;
+    }
   }
 
   if (IsClassConstructor(node->kind())) {
     DisableFullCodegenAndCrankshaft(kClassConstructorFunction);
   }
 
+  if (scope->is_function_scope()) {
+    Variable* function_var = scope->function_var();
+    if (function_var != nullptr && !function_var->IsUnallocated()) {
+      // Initialization of local function-named variable is no longer part of
+      // the AST, and this initialization is not handled in full-codegen or
+      // crankshaft.
+      DisableFullCodegenAndCrankshaft(kNoReason);
+    }
+  }
+
+  if (IsGeneratorFunction(node->kind()) || scope->is_module_scope()) {
+    // Generator functions and Modules have an initial yield which is not
+    // included in the AST.
+    DCHECK_EQ(0, yield_count_);
+    yield_count_ = 1;
+  }
+
   LanguageModeScope language_mode_scope(this, node->language_mode());
 
   VisitDeclarations(scope->declarations());
+  if (node->parameter_init_block() != nullptr) {
+    DisableFullCodegenAndCrankshaft(kNonSimpleParameters);
+    VisitBlock(node->parameter_init_block());
+  }
   VisitStatements(node->body());
 
   node->set_ast_properties(&properties_);