Split AST Declaration class, in preparation for new module declaration forms.

src/x64/full-codegen-x64.cc

Index: src/x64/full-codegen-x64.cc
diff --git a/src/x64/full-codegen-x64.cc b/src/x64/full-codegen-x64.cc
index 466c3f7238dec7e4a6cfde43700a2c699e16452b..2544e34d8426253e55313bf8e9cfe1b8eb30d122 100644
--- a/src/x64/full-codegen-x64.cc
+++ b/src/x64/full-codegen-x64.cc
@@ -256,11 +256,11 @@ void FullCodeGenerator::Generate(CompilationInfo* info) {
       // For named function expressions, declare the function name as a
       // constant.
       if (scope()->is_function_scope() && scope()->function() != NULL) {
-        int ignored = 0;
         VariableProxy* proxy = scope()->function();
         ASSERT(proxy->var()->mode() == CONST ||
                proxy->var()->mode() == CONST_HARMONY);
-        EmitDeclaration(proxy, proxy->var()->mode(), NULL, &ignored);
+        ASSERT(proxy->var()->location() != Variable::UNALLOCATED);
+        EmitDeclaration(proxy, proxy->var()->mode(), NULL);
       }
       VisitDeclarations(scope()->declarations());
     }
@@ -678,8 +678,7 @@ void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr,
 
 void FullCodeGenerator::EmitDeclaration(VariableProxy* proxy,
                                         VariableMode mode,
-                                        FunctionLiteral* function,
-                                        int* global_count) {
+                                        FunctionLiteral* function) {
   // If it was not possible to allocate the variable at compile time, we
   // need to "declare" it at runtime to make sure it actually exists in the
   // local context.
@@ -688,7 +687,7 @@ void FullCodeGenerator::EmitDeclaration(VariableProxy* proxy,
       (mode == CONST || mode == CONST_HARMONY || mode == LET);
   switch (variable->location()) {
     case Variable::UNALLOCATED:
-      ++(*global_count);
+      ++global_count_;
       break;
 
     case Variable::PARAMETER:
@@ -769,9 +768,6 @@ void FullCodeGenerator::EmitDeclaration(VariableProxy* proxy,
 }
 
 
-void FullCodeGenerator::VisitDeclaration(Declaration* decl) { }
-
-
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   __ push(rsi);  // The context is the first argument.