PR preprocessor/61817

PR preprocessor/61817
PR preprocessor/69391

  * internal.h (_cpp_builtin_macro_text): Update decl.
  * macro.c (_cpp_builtin_macro_text): Accept location for __LINE__.
  (builtin_macro): Accept a second location for __LINE__.
  (enter_macro_context): Compute both virtual and real expansion
  locations for the macro.

  * gcc.dg/pr61817-1.c: New test.
  * gcc.dg/pr61817-2.c: New test.
  * gcc.dg/pr69391-1.c: New test.
  * gcc.dg/pr69391-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234794 138bc75d-0d04-0410-961f-82ee72b054a4