PR sanitizer/66343
	* ubsan.c (ubsan_create_data): Call initialize_sanitizer_builtins here.
	(ubsan_instrument_float_cast): And not here.

	* c-ubsan.c (ubsan_instrument_return): Don't call
	initialize_sanitizer_builtins here.

	* gcc.dg/pch/pr66343-3.c: New test.
	* gcc.dg/pch/pr66343-3.hs: New file.

From-SVN: r240804