Reuse higher-order `ResolveInvoke` logic to resolve func refs in `[*DerivativeOf]` attribs. (#2688)

* Reuse higher-order `ResolveInvoke` logic to resolve func refs in [*DerivativeOf] attribs.

* Add diff implementation matrix versions of binary and ternary intrinsics.

* Add diff impl for legacy intrinsics.

* Fix diagnostics of using non-differentiable function in a diff operator.

* Add diff implementation for `determinant`.

---------

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

1 files changed, 1 insertions, 1 deletions

diff --git a/source/slang/slang-check-overload.cpp b/source/slang/slang-check-overload.cpp
index 09ddde2de..91af731ad 100644
--- a/source/slang/slang-check-overload.cpp
+++ b/source/slang/slang-check-overload.cpp
@@ -1622,10 +1622,10 @@ namespace Slang
             else
             {
                 // Unhandled case for the inner expr.
-                funcExpr->type = this->getASTBuilder()->getErrorType();
                 getSink()->diagnose(funcExpr->loc,
                     Diagnostics::expectedFunction,
                     funcExpr->type);
+                funcExpr->type = this->getASTBuilder()->getErrorType();
             }
            
         }