[async-functions] support await expressions in finally statements

src/ast/ast-expression-rewriter.cc

Index: src/ast/ast-expression-rewriter.cc
diff --git a/src/ast/ast-expression-rewriter.cc b/src/ast/ast-expression-rewriter.cc
index f46e21b410ad779a52a75f28e298f08f18d05231..ed9229c7c92fbf531e8f651c5ca305a5157ef714 100644
--- a/src/ast/ast-expression-rewriter.cc
+++ b/src/ast/ast-expression-rewriter.cc
@@ -187,6 +187,8 @@ void AstExpressionRewriter::VisitDebuggerStatement(DebuggerStatement* node) {
 void AstExpressionRewriter::VisitFunctionLiteral(FunctionLiteral* node) {
   REWRITE_THIS(node);
   VisitDeclarations(node->scope()->declarations());
+  Block* init_block = node->parameter_init_block();
+  if (init_block != nullptr) VisitBlock(init_block);
   ZoneList<Statement*>* body = node->body();
   if (body != nullptr) VisitStatements(body);
 }
@@ -268,7 +270,6 @@ void AstExpressionRewriter::VisitAssignment(Assignment* node) {
 
 void AstExpressionRewriter::VisitYield(Yield* node) {
   REWRITE_THIS(node);
-  AST_REWRITE_PROPERTY(Expression, node, generator_object);
   AST_REWRITE_PROPERTY(Expression, node, expression);
 }
 
@@ -377,6 +378,10 @@ void AstExpressionRewriter::VisitGetIterator(GetIterator* node) {
   AST_REWRITE_PROPERTY(Expression, node, iterable);
 }
 
+void AstExpressionRewriter::VisitInternalVariable(InternalVariable* node) {
+  NOTHING();
+}
+
 void AstExpressionRewriter::VisitDoExpression(DoExpression* node) {
   REWRITE_THIS(node);
   AST_REWRITE_PROPERTY(Block, node, block);