PR preprocessor/41445
* c-ppoutput.c (do_line_change): New function.
(cb_line_change): Use it.
(scan_translation_unit): Call do_line_change if
avoid_paste or PREV_WHITE and token location is on a different line
than print.src_line.
* gcc.dg/cpp/separate-1.c: Adjust.
* gcc.dg/cpp/spacing1.c: Add -P to dg-options.
* gcc.dg/debug/dwarf2/pr41445-1.c: New test.
* gcc.dg/debug/dwarf2/pr41445-2.c: New test.
* gcc.dg/debug/dwarf2/pr41445-3.c: New test.
* gcc.dg/debug/dwarf2/pr41445-4.c: New test.
* gcc.dg/debug/dwarf2/pr41445-5.c: New test.
* gcc.dg/debug/dwarf2/pr41445-6.c: New test.
From-SVN: r152599
