Silence vector ABI change warnings for x86

Silence vector ABI change warnings for x86

	PR target/59794
	* c-c++-common/convert-vec-1.c: Also prune ABI change for
	Linux/x86.
	* g++.dg/cpp0x/constexpr-53094-2.C: Likewise.
	* g++.dg/ext/attribute-test-1.C: Likewise.
	* g++.dg/ext/attribute-test-2.C: Likewise.
	* g++.dg/ext/attribute-test-3.C: Likewise.
	* g++.dg/ext/attribute-test-4.C: Likewise.
	* g++.dg/ext/pr56790-1.C: Likewise.
	* g++.dg/torture/pr38565.C: Likewise.
	* gcc.dg/pr53060.c: Likewise.
	* c-c++-common/scal-to-vec2.c: Add -msse2 for x86.
	* c-c++-common/vector-compare-2.c: Likewise.
	* gcc.dg/Wstrict-aliasing-bogus-ref-all-2.c: Likewise.
	* g++.dg/conversion/simd1.C: Add -msse2 for x86.  Adjust
	dg-message line number.

From-SVN: r206634