[C++ PATCH] clone_function_decl breakup

[C++ PATCH] clone_function_decl breakup

https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01083.html
This patch, from the modules branch, breaks out function cloning from the
method vector updating. We have a new function, build_clones,
which does the building, returning a count of the number of clones
(2 or 3). clone_function_decl separately adds them to the method
vector, if they should be added. I suppose this could have used
FOR_EVERY_CLONE, but I went with the counting scheme.

	* class.c (build_clones): Break out of clone_function_decl.  Just
	build the clones.
	(clone_function_decl): Call build_clones, then maybe add them to
	the method vector.

From-SVN: r276998