Fix "use types" directive in modules

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 62e03631856b6a82935593f57c604d446a865c2e..33934c23fdf58a4ddc61bbb9880cedc4c8ca294e 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -1356,6 +1356,13 @@ void* Parser::ParseModuleItemList(ZoneList<Statement*>* body, bool* ok) {
           // incremented after parsing is done.
           ++use_counts_[v8::Isolate::kUseAsm];
           scope_->SetAsmModule();
+        // Check "use types".
+        } else if (allow_harmony_types() &&
+                   literal->raw_value()->AsString() ==
+                       ast_value_factory()->use_types_string() &&
+                   token_loc.end_pos - token_loc.beg_pos ==
+                       ast_value_factory()->use_types_string()->length() + 2) {
+          scope_->SetTyped();
         }
       } else {
         // End of the directive prologue.