[compiler] Remove is_native and is_eval accessors.

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 bf1b9a7e9a944c87b0cb05df7dd7b8437dad00f8..b1b56a79aa23d3344624fc605d36b646d674ea41 100644
--- a/src/full-codegen/full-codegen.cc
+++ b/src/full-codegen/full-codegen.cc
@@ -442,10 +442,7 @@ void FullCodeGenerator::VisitSloppyBlockFunctionStatement(
 
 
 int FullCodeGenerator::DeclareGlobalsFlags() {
-  DCHECK(DeclareGlobalsLanguageMode::is_valid(language_mode()));
-  return DeclareGlobalsEvalFlag::encode(is_eval()) |
-         DeclareGlobalsNativeFlag::encode(is_native()) |
-         DeclareGlobalsLanguageMode::encode(language_mode());
+  return info_->GetDeclareGlobalsFlags();
 }
 
 void FullCodeGenerator::PushOperand(Handle<Object> handle) {