[async-functions] support await expressions in finally statements

src/crankshaft/typing.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/crankshaft/typing.h"
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/ast/variables.h"
 #include "src/frames-inl.h"
@@ skipping 451 matching lines @@
   NarrowType(expr, bounds_->get(rhs));
 
   VariableProxy* proxy = expr->target()->AsVariableProxy();
   if (proxy != NULL && proxy->var()->IsStackAllocated()) {
     store_.Seq(variable_index(proxy->var()), Effect(bounds_->get(expr)));
   }
 }
 
 
 void AstTyper::VisitYield(Yield* expr) {
-  RECURSE(Visit(expr->generator_object()));
   RECURSE(Visit(expr->expression()));
 
   // We don't know anything about the result type.
 }
 
 
 void AstTyper::VisitThrow(Throw* expr) {
   RECURSE(Visit(expr->exception()));
   // TODO(rossberg): is it worth having a non-termination effect?
 
@@ skipping 268 matching lines @@
 
 void AstTyper::VisitSpread(Spread* expr) { UNREACHABLE(); }
 
 
 void AstTyper::VisitEmptyParentheses(EmptyParentheses* expr) {
   UNREACHABLE();
 }
 
 void AstTyper::VisitGetIterator(GetIterator* expr) { UNREACHABLE(); }
 
+void AstTyper::VisitInternalVariable(InternalVariable* expr) { UNREACHABLE(); }
+
 void AstTyper::VisitThisFunction(ThisFunction* expr) {}
 
 
 void AstTyper::VisitSuperPropertyReference(SuperPropertyReference* expr) {}
 
 
 void AstTyper::VisitSuperCallReference(SuperCallReference* expr) {}
 
 
 void AstTyper::VisitRewritableExpression(RewritableExpression* expr) {
@@ skipping 20 matching lines @@
 }
 
 
 void AstTyper::VisitFunctionDeclaration(FunctionDeclaration* declaration) {
   RECURSE(Visit(declaration->fun()));
 }
 
 
 }  // namespace internal
 }  // namespace v8