Language server robustness fix. (#3607)

* Language server robustness fix.

* Allow parameter name to be the same as its type.

* fix

* Fix test.

1 files changed, 6 insertions, 0 deletions

diff --git a/source/slang/slang-language-server-ast-lookup.cpp b/source/slang/slang-language-server-ast-lookup.cpp
index 13db8af18..755805b51 100644
--- a/source/slang/slang-language-server-ast-lookup.cpp
+++ b/source/slang/slang-language-server-ast-lookup.cpp
@@ -752,6 +752,12 @@ bool _findAstNodeImpl(ASTLookupContext& context, SyntaxNode* node)
                         return true;
                 }
             }
+            if (auto aggTypeDecl = as<AggTypeDecl>(container))
+            {
+                ASTLookupExprVisitor visitor(&context);
+                if (visitor.dispatchIfNotNull(aggTypeDecl->wrappedType.exp))
+                    return true;
+            }
         }
     }
     return false;