Make Variable::is_this always return the correct value

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index ebb32208010177a511b6432bd23c96489e7e884e..31e3520be6046d90a026157c8d6c2fd3397946f7 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -1632,6 +1632,9 @@ class VariableProxy final : public Expression {
   BailoutId BeforeId() const { return BailoutId(local_id(0)); }
   void set_next_unresolved(VariableProxy* next) { next_unresolved_ = next; }
   VariableProxy* next_unresolved() { return next_unresolved_; }
+  Variable::Kind var_kind() const {
+    return is_this() ? Variable::THIS : Variable::NORMAL;

[adamk, 2016/08/10 17:57:39]

I think the reason this bugs me is that var_kind() and var()->kind() can
disagree.

[Toon Verwaest, 2016/08/11 08:46:25]

Acknowledged.

+  }
 
  private:
   friend class AstNodeFactory;