Test for crash via inlining.

test/libyul/yulOptimizerTests/fullInliner/multi_fun_callback.yul

@@ -0,0 +1,84 @@
+{
+	// This is a test for an older version where
+	// inlining was performed on a function
+	// just being called. This is a problem
+	// because the statemenst of the original
+	// function might be in an invalid state.
+
+	function f(x) {
+		mstore(0, x)
+		mstore(7, h())
+		g(10)
+		mstore(1, x)
+	}
+	function g(x) {
+		f(1)
+	}
+	function h() -> t {
+		t := 2
+
+	}
+	{
+		f(100)
+	}
+}
+// ----
+// fullInliner
+// {
+//     {
+//         {
+//             let f_x_1 := 100
+//             mstore(0, f_x_1)
+//             let f_h_t
+//             f_h_t := 2
+//             mstore(7, f_h_t)
+//             let f__5 := 10
+//             let f_g_x_1 := f__5
+//             let f_g_f_x := 1
+//             let 
+//             mstore()
+//             let f_g_f_ := h()
+//             let 
+//             mstore()
+//             let 
+//             g(f__5)
+//             mstore(1, f_g_f_x)
+//             mstore(1, f_x_1)
+//         }
+//     }
+//     function f(x)
+//     {
+//         mstore(0, x)
+//         let h_t
+//         h_t := 2
+//         mstore(7, h_t)
+//         let _5 := 10
+//         let g_x_1 := _5
+//         let g_f_x := 1
+//         let 
+//         mstore()
+//         let g_f_ := h()
+//         let 
+//         mstore()
+//         let 
+//         g(_5)
+//         mstore(1, g_f_x)
+//         mstore(1, x)
+//     }
+//     function g(x_1)
+//     {
+//         let f_x := 1
+//         let 
+//         mstore()
+//         let f_ := h()
+//         let 
+//         mstore()
+//         let 
+//         g(_5)
+//         mstore(1, f_x)
+//     }
+//     function h() -> t
+//     {
+//         t := 2
+//     }
+// }