[compiler] Stop delegating CompilationInfo::context.

src/compilation-info.cc

Index: src/compilation-info.cc
diff --git a/src/compilation-info.cc b/src/compilation-info.cc
index 9f210a6785603ff81510f3bf5ef76b58ba947a91..4962f5ec0629d3cc99211efd13c25f84b6286c5a 100644
--- a/src/compilation-info.cc
+++ b/src/compilation-info.cc
@@ -27,8 +27,6 @@ namespace internal {
 PARSE_INFO_GETTER(Handle<Script>, script)
 PARSE_INFO_GETTER(FunctionLiteral*, literal)
 PARSE_INFO_GETTER_WITH_DEFAULT(DeclarationScope*, scope, nullptr)
-PARSE_INFO_GETTER_WITH_DEFAULT(Handle<Context>, context,
-                               Handle<Context>::null())
 PARSE_INFO_GETTER(Handle<SharedFunctionInfo>, shared_info)
 
 #undef PARSE_INFO_GETTER
@@ -178,6 +176,12 @@ bool CompilationInfo::ExpectsJSReceiverAsReceiver() {
   return is_sloppy(parse_info()->language_mode()) && !parse_info()->is_native();
 }
 
+bool CompilationInfo::has_context() const { return !closure().is_null(); }
+
+Context* CompilationInfo::context() const {
+  return has_context() ? closure()->context() : nullptr;
+}
+
 bool CompilationInfo::has_native_context() const {
   return !closure().is_null() && (closure()->native_context() != nullptr);
 }