dwarf2out.c: fix jit issue with early_dwarf_finished
All of the jit testcases that generate debuginfo appear to have been
failing since r240228 on their 2nd in-process iteration on this
assertion in set_early_dwarf's ctor:
gcc_assert (! early_dwarf_finished);
Root cause is that the global is never reset at the end of compilation,
which this patch fixes in the obvious way.
gcc/ChangeLog:
* dwarf2out.c (dwarf2out_c_finalize): Reset early_dwarf and
early_dwarf_finished.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243136 138bc75d-0d04-0410-961f-82ee72b054a4