[flang] Force the use of intrinsic builtins in type_info

This ensures that the __Fortran_builtins module is always used
as an intrinsic module by __Fortran_type_info, which avoids issues
when, for instance, the intrinsic modules dir is present in the
include paths.

Fixes #63592

Reviewed By: klausler

Differential Revision: https://reviews.llvm.org/D154452

flang/module/__fortran_type_info.f90

@@ -13,7 +13,7 @@
 
 module __Fortran_type_info
 
-  use __Fortran_builtins, only: __builtin_c_ptr, __builtin_c_funptr
+  use, intrinsic :: __Fortran_builtins, only: __builtin_c_ptr, __builtin_c_funptr
 
   private