Treat a '!' preceding a function literal as eager-compile hint.

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index a5eb0d20c0fec567fca9cda5990b23f83cf86b76..79d06da50750fca179203bb8abd768b07043d76d 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -2530,7 +2530,7 @@ FunctionLiteral* Parser::ParseFunctionLiteral(
   }
 
   FunctionLiteral::EagerCompileHint eager_compile_hint =
-      function_state_->next_function_is_parenthesized()
+      function_state_->next_function_is_likely_called()
           ? FunctionLiteral::kShouldEagerCompile
           : default_eager_compile_hint();