D-Programming-Language/dmd — pull request #1379 by 9rnsr (2012-12-16 12:18:25+00:00)
Title: Issue 9162 - [tdpl] Non-static structs should have access to outer lexical scope

http://d.puremagic.com/issues/show_bug.cgi?id=9162

Calculate `StructDeclaration::isnested` lazily.