Implement ES2015 labelled function declaration restrictions

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index dbd8f1110108fdb17edd89958105f848e040e167..c6f8f341efa9ef8ebf990c2382d0143f882025af 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -752,8 +752,10 @@ class Parser : public ParserBase<ParserTraits> {
                           ZoneList<const AstRawString*>* local_names,
                           Scanner::Location* reserved_loc, bool* ok);
   ZoneList<ImportDeclaration*>* ParseNamedImports(int pos, bool* ok);
-  Statement* ParseStatement(ZoneList<const AstRawString*>* labels, bool* ok);
-  Statement* ParseSubStatement(ZoneList<const AstRawString*>* labels, bool* ok);
+  Statement* ParseStatement(ZoneList<const AstRawString*>* labels,
+                            AllowLabelledFunctionStatement, bool* ok);

[adamk, 2016/03/24 01:15:52]

Sadly I think v8 style here is to name the argument, even in a declaration.

+  Statement* ParseSubStatement(ZoneList<const AstRawString*>* labels,
+                               AllowLabelledFunctionStatement, bool* ok);
   Statement* ParseStatementAsUnlabelled(ZoneList<const AstRawString*>* labels,
                                    bool* ok);
   Statement* ParseFunctionDeclaration(ZoneList<const AstRawString*>* names,
@@ -895,7 +897,8 @@ class Parser : public ParserBase<ParserTraits> {
                                    ZoneList<const AstRawString*>* names,
                                    bool* ok);
   Statement* ParseExpressionOrLabelledStatement(
-      ZoneList<const AstRawString*>* labels, bool* ok);
+      ZoneList<const AstRawString*>* labels, AllowLabelledFunctionStatement,
+      bool* ok);
   IfStatement* ParseIfStatement(ZoneList<const AstRawString*>* labels,
                                 bool* ok);
   Statement* ParseContinueStatement(bool* ok);