c++/modules: Fix ICE in instantiating_tu_local_entity [PR122628]

I'd missed a STRIP_TEMPLATE when attempting to query whether DECL was
an imported entity.

	PR c++/122628

gcc/cp/ChangeLog:

	* module.cc (instantiating_tu_local_entity): Add missing
	STRIP_TEMPLATEs.

gcc/testsuite/ChangeLog:

	* g++.dg/modules/internal-18.C: New test.

Signed-off-by: Nathaniel Shead <[email protected]>

Author: wreien

gcc/cp/module.cc

@@ -14231,8 +14231,8 @@ instantiating_tu_local_entity (tree decl)
     return false;
 
   tree origin = get_originating_module_decl (decl);
-  if (!DECL_LANG_SPECIFIC (origin)
-      || !DECL_MODULE_IMPORT_P (origin))
+  if (!DECL_LANG_SPECIFIC (STRIP_TEMPLATE (origin))
+      || !DECL_MODULE_IMPORT_P (STRIP_TEMPLATE (origin)))
     return false;
 
   /* Referencing TU-local entities from a header is generally OK.

gcc/testsuite/g++.dg/modules/internal-18.C

@@ -0,0 +1,9 @@
+// PR c++/122628
+// { dg-additional-options "-fmodules" }
+
+template <typename T> static void baz(T) {}
+template <typename T> static void bar(T) { baz(0); }
+
+void foo() {
+  bar(0);
+}