PR optimization/7675
	* c-typeck.c (build_external_ref): Set the DECL_NONLOCAL flag
	on VAR_DECL, PARM_DECL and FUNCTION_DECL from within
	nested functions if they refer to declarations from parent functions.
	* stmt.c (expand_decl): Don't put automatic variables in registers
	if the DECL_NONLOCAL flag is set.

From-SVN: r65774