[Bug lto/67548] [5/6 Regression] LTO drops weak binding with "ld -r"

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67548

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
It is wrong to clear DECL_WEAK:

DECL_WEAK (next->decl) = false;