Tests: Rename inf to avoid VAMS errors

test_regress/t/t_interface_generic_function.v

@@ -4,7 +4,7 @@
 // SPDX-FileCopyrightText: 2025 Antmicro
 // SPDX-License-Identifier: CC0-1.0
 
-interface inf;
+interface ifc;
   int v;
   function int get();
     return v;
@@ -15,7 +15,9 @@ interface inf2;
   int k;
 endinterface
 
-module GenericModule (interface a);
+module GenericModule (
+    interface a
+);
   initial begin
     #1;
     if (a.get() != 4) $stop;
@@ -23,7 +25,7 @@ module GenericModule (interface a);
 endmodule
 
 module t;
-  inf inf_inst();
+  ifc inf_inst ();
   GenericModule genericModule (inf_inst);
   initial begin
     inf_inst.v = 4;