ES6 Classes: Remove tracking of super construct calls.

src/scopes.cc

Index: src/scopes.cc
diff --git a/src/scopes.cc b/src/scopes.cc
index b32c9a30666a722ede924057c01e7bf7fc789b34..05cd2e7c16ef50b2a0375f1db55c32a2c82e93b5 100644
--- a/src/scopes.cc
+++ b/src/scopes.cc
@@ -157,7 +157,6 @@ void Scope::SetDefaults(ScopeType scope_type,
   scope_calls_eval_ = false;
   scope_uses_arguments_ = false;
   scope_uses_super_property_ = false;
-  scope_uses_super_constructor_call_ = false;
   scope_uses_this_ = false;
   asm_module_ = false;
   asm_function_ = outer_scope != NULL && outer_scope->asm_module_;
@@ -168,7 +167,6 @@ void Scope::SetDefaults(ScopeType scope_type,
   inner_scope_uses_arguments_ = false;
   inner_scope_uses_this_ = false;
   inner_scope_uses_super_property_ = false;
-  inner_scope_uses_super_constructor_call_ = false;
   force_eager_compilation_ = false;
   force_context_allocation_ = (outer_scope != NULL && !is_function_scope())
       ? outer_scope->has_forced_context_allocation() : false;
@@ -371,9 +369,6 @@ Scope* Scope::FinalizeBlockScope() {
   // Propagate usage flags to outer scope.
   if (uses_arguments()) outer_scope_->RecordArgumentsUsage();
   if (uses_super_property()) outer_scope_->RecordSuperPropertyUsage();
-  if (uses_super_constructor_call()) {
-    outer_scope_->RecordSuperConstructorCallUsage();
-  }
   if (uses_this()) outer_scope_->RecordThisUsage();
 
   return NULL;
@@ -903,17 +898,12 @@ void Scope::Print(int n) {
   if (scope_uses_arguments_) Indent(n1, "// scope uses 'arguments'\n");
   if (scope_uses_super_property_)
     Indent(n1, "// scope uses 'super' property\n");
-  if (scope_uses_super_constructor_call_)
-    Indent(n1, "// scope uses 'super' constructor\n");
   if (scope_uses_this_) Indent(n1, "// scope uses 'this'\n");
   if (inner_scope_uses_arguments_) {
     Indent(n1, "// inner scope uses 'arguments'\n");
   }
   if (inner_scope_uses_super_property_)
     Indent(n1, "// inner scope uses 'super' property\n");
-  if (inner_scope_uses_super_constructor_call_) {
-    Indent(n1, "// inner scope uses 'super' constructor\n");
-  }
   if (inner_scope_uses_this_) Indent(n1, "// inner scope uses 'this'\n");
   if (outer_scope_calls_sloppy_eval_) {
     Indent(n1, "// outer scope calls 'eval' in sloppy context\n");
@@ -1190,10 +1180,6 @@ void Scope::PropagateScopeInfo(bool outer_scope_calls_sloppy_eval ) {
           inner->inner_scope_uses_super_property_) {
         inner_scope_uses_super_property_ = true;
       }
-      if (inner->uses_super_constructor_call() ||
-          inner->inner_scope_uses_super_constructor_call_) {
-        inner_scope_uses_super_constructor_call_ = true;
-      }
       if (inner->scope_uses_this_ || inner->inner_scope_uses_this_) {
         inner_scope_uses_this_ = true;
       }