c++: ICE with int{} in template. [PR97899]

c++: ICE with int{} in template. [PR97899]

split_nonconstant_init_1 was confused by a CONSTRUCTOR with non-aggregate
type, which (with COMPOUND_LITERAL_P set) we use in a template to represent
a braced functional cast.  It seems to me that there's no good reason to do
split_nonconstant_init at all in a template.

gcc/cp/ChangeLog:

	PR c++/97899
	* typeck2.c (store_init_value): Don't split_nonconstant_init in a
	template.

gcc/testsuite/ChangeLog:

	PR c++/97899
	* g++.dg/cpp0x/initlist-template3.C: New test.