Handle import, entrypoint and global params in included files. (#3395)

* Handle `import`, entrypoint and global params in included files.

* Fix language server.

* Extend `_createScopeForLegacyLookup` for `__include`.

---------

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

1 files changed, 5 insertions, 0 deletions

diff --git a/source/slang/slang-lower-to-ir.cpp b/source/slang/slang-lower-to-ir.cpp
index 8f94b7e90..f0fd33e13 100644
--- a/source/slang/slang-lower-to-ir.cpp
+++ b/source/slang/slang-lower-to-ir.cpp
@@ -7304,6 +7304,11 @@ struct DeclLoweringVisitor : DeclVisitor<DeclLoweringVisitor, LoweredValInfo>
             // Variable declared at global/namespace scope? -> Global.
             return true;
         }
+        else if (as<FileDecl>(parent))
+        {
+            // Variable declared at file scope? -> Global.
+            return true;
+        }
         else if(as<AggTypeDeclBase>(parent))
         {
             if(decl->hasModifier<HLSLStaticModifier>())