* g++.dg/torture/dg-torture.exp: Run c-c++-common torture tests.
	* gcc.dg/torture/dg-torture.exp: Likewise.
	* c-c++-common/complex-sign.h,
	c-c++-common/complex-sign-add.c,
	c-c++-common/complex-sign-mixed-add.c,
	c-c++-common/complex-sign-mixed-div.c,
	c-c++-common/complex-sign-mixed-mul.c,
	c-c++-common/complex-sign-mixed-sub.c,
	c-c++-common/complex-sign-mul.c,
	c-c++-common/complex-sign-sub.c: Move into c-c++-common/torture.

From-SVN: r156879