Rework differentiation of member access through `[DerivativeMember(DiffType.field)]` (#2460)

* wip: remove auto-diff for member access, add diff through property accessors.

* Fix getter-setter test.

* Fix getter-setter-multi test.

* Fix nested-jvp test.

* Use [DerivativeMember] attribute to differentiate through member access.

* Clean up.

* More cleanup.

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/source/slang/slang-check.cpp b/source/slang/slang-check.cpp
index 8c6cddbfe..bcc74a6d0 100644
--- a/source/slang/slang-check.cpp
+++ b/source/slang/slang-check.cpp
@@ -210,24 +210,4 @@ namespace Slang
             throw;
         }
     }
-
-    void removeLookupForName(TypeCheckingCache* cache, Name* name)
-    {
-        auto& lookupCache = cache->lookupCache;
-
-        List<LookupRequestKey> keys;
-
-        for (const auto& pairs : lookupCache)
-        {
-            const auto& key = pairs.Key;
-            if (key.name == name)
-            {
-                keys.add(key);
-            }
-        }
-        for (auto& key : keys)
-        {
-            lookupCache.Remove(key);
-        }
-    }
 }