Adding test for multi return values including bool in evmTyped dialect. Calling zeroLiteralForType from inliner

test/libyul/yulOptimizerTests/fullInliner/multi_return_typed.yul

@@ -0,0 +1,22 @@
+{
+	function f(a: u256) -> x: bool, y:u256 {
+		y := mul(a, a)
+	}
+	let r: bool, s: u256 := f(mload(3))
+}
+// ====
+// dialect: evmTyped
+// step: fullInliner
+// ----
+// {
+//     {
+//         let a_3 := mload(3)
+//         let x_4:bool := false
+//         let y_5 := 0
+//         y_5 := mul(a_3, a_3)
+//         let r:bool := x_4
+//         let s := y_5
+//     }
+//     function f(a) -> x:bool, y
+//     { y := mul(a, a) }
+// }