Allow for implicit `this` expressions.

- When peforming ordinary lookup, if the container declaration for a scope is an aggregate type or `extension` decl, then use a "breadcrumb" to make sure that we use a `this` expression as the base of any resulting declaration reference

- Add a test case for implicit `this` usage

- Update constrained generic test case to use implicit `this` for member reference, as was originally intended

1 files changed, 1 insertions, 3 deletions

diff --git a/tests/compute/generics-constrained.slang b/tests/compute/generics-constrained.slang
index 669674376..c8ab71bfa 100644
--- a/tests/compute/generics-constrained.slang
+++ b/tests/compute/generics-constrained.slang
@@ -17,9 +17,7 @@ struct A : Helper
 		// TODO: we should be able to reference a member variable here,
 		// but the front-end isn't handling references through `this`
 		// properly yet.
-//		return a;
-
-		return 1.0f;
+		return a;
 	}	
 };