2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 35635
	* c-common.c (conversion_warning): Use a switch. Ignore boolean
	expressions except for conversions to signed:1 bitfields. Handle
	COND_EXPR with constant operands.
testsuite/
	* gcc.dg/pr35635.c: New.
	* gcc.dg/Wconversion-integer.c: Update.
	* gcc.dg/Wconversion-integer-no-sign.c: Update.
	* gcc.dg/Wsign-conversion.c: Update.
	* g++.dg/warn/pr35635.C: New.
	* g++.dg/warn/Wconversion-integer.C: Update.
	* g++.dg/warn/Wsign-conversion.C: Update.

From-SVN: r139049