re PR c++/50024 ([C++0x] [4.7 Regression] crash when using braced initialization in member function of template)

	PR c++/50024
	* semantics.c (maybe_constant_value): Don't try to fold { }.
	* pt.c (build_non_dependent_expr): Don't wrap { }.
	* init.c (build_value_init): Allow scalar value-init in templates.

From-SVN: r177994