Support entrypoints defined in a namespace. (#5011)

* Support entrypoints defined in a namespace.

* Fix test.

1 files changed, 8 insertions, 1 deletions

diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index 4a6d33363..b0898b1a0 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -2328,7 +2328,14 @@ DeclRef<Decl> ComponentType::findDeclFromString(
     {
         result = declRefExpr->declRef;
     }
-
+    else if (auto overloadedExpr = as<OverloadedExpr>(checkedExpr))
+    {
+        sink->diagnose(SourceLoc(), Diagnostics::ambiguousReference, name);
+        for (auto candidate : overloadedExpr->lookupResult2)
+        {
+            sink->diagnose(candidate.declRef.getDecl(), Diagnostics::overloadCandidate, candidate.declRef);
+        }
+    }
     m_decls[name] = result;
     return result;
 }