Revert of Separate Scope into DeclarationScope and Scope

src/full-codegen/full-codegen.cc

Index: src/full-codegen/full-codegen.cc
diff --git a/src/full-codegen/full-codegen.cc b/src/full-codegen/full-codegen.cc
index 6a583a2ccd667e3bf98a1858ca67a0fd2051ec9c..34ed5e8fac12503c4f4b4f6a2fe9cf5463a7e01a 100644
--- a/src/full-codegen/full-codegen.cc
+++ b/src/full-codegen/full-codegen.cc
@@ -1918,7 +1918,7 @@
   //   switch (1) { case 0: let x = 2; case 1: f(x); }
   // The scope of the variable needs to be checked, in case the use is
   // in a sub-block which may be linear.
-  if (var->scope()->GetDeclarationScope() != scope()->GetDeclarationScope()) {
+  if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) {
     return true;
   }