Implement handling of arrow functions in the parser

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 4b539897b87b94cc66abbd27c2f2931ff9fb3354..fa83c149d72abf43c67a7ce7d11ca315d84ddc1d 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -615,6 +615,7 @@ static void SetFunctionInfo(Handle<SharedFunctionInfo> function_info,
   function_info->set_dont_inline(lit->flags()->Contains(kDontInline));
   function_info->set_dont_cache(lit->flags()->Contains(kDontCache));
   function_info->set_is_generator(lit->is_generator());
+  function_info->set_is_arrow(lit->is_arrow());
 }
 
 
@@ -826,6 +827,7 @@ static Handle<SharedFunctionInfo> CompileToplevel(CompilationInfo* info) {
         lit->name(),
         lit->materialized_literal_count(),
         lit->is_generator(),
+        lit->is_arrow(),
         info->code(),
         ScopeInfo::Create(info->scope(), info->zone()));
 
@@ -1035,6 +1037,7 @@ Handle<SharedFunctionInfo> Compiler::BuildFunctionInfo(FunctionLiteral* literal,
       factory->NewSharedFunctionInfo(literal->name(),
                                      literal->materialized_literal_count(),
                                      literal->is_generator(),
+                                     literal->is_arrow(),
                                      info.code(),
                                      scope_info);
   SetFunctionInfo(result, literal, false, script);