Fix type lookup of global type arguments

Global type argument lookup should be done in both loaded modules and current trnaslation units. This is the same as the logic of spReflection_FindTypeByName, so it is extracted into `CompileRequest::lookupGlobalDecl(Name*)` method and reused in places.

1 files changed, 2 insertions, 1 deletions

diff --git a/source/slang/check.cpp b/source/slang/check.cpp
index dc5efbd73..46ed9da15 100644
--- a/source/slang/check.cpp
+++ b/source/slang/check.cpp
@@ -6777,7 +6777,8 @@ namespace Slang
         // Lookup generic parameter types in global scope
         for (auto name : entryPoint->genericParameterTypeNames)
         {
-            if (!translationUnitSyntax->memberDictionary.TryGetValue(name, firstDeclWithName))
+            firstDeclWithName = entryPoint->compileRequest->lookupGlobalDecl(name);
+            if (!firstDeclWithName)
             {
                 // If there doesn't appear to be any such declaration, then
                 // we need to diagnose it as an error, and then bail out.