Annex B.3.3 semantics

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 572b11fe098029a2d5c102f522706de3ab6b2314..d4d895547cf4a907298fbef2be916225c8d81eb6 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -1019,7 +1019,9 @@ class Parser : public ParserBase<ParserTraits> {
   void InsertShadowingVarBindingInitializers(Block* block);
 
   // Implement sloppy block-scoped functions, ES2015 Annex B 3.3
-  void InsertSloppyBlockFunctionVarBindings(Scope* scope, bool* ok);
+  void InsertSloppyBlockFunctionVarBindings(Scope* scope,
+                                            Scope* complex_params_scope,
+                                            bool* ok);
 
   // Parser support
   VariableProxy* NewUnresolved(const AstRawString* name, VariableMode mode);