compiler: adjust TestInline template

Move all auxiliary function declaration after Main, so that INITSLOT
instructions counter works properly. `vmAndCompileInterop` loads program
and moves nextIP to the Main function offset if there's no _init
function. If _init is there, then nextIP will be moved to the start of
_init. In TestInline we don't handle instructions properly (CALL/JMP
don't change nextIP), we just perform instruction traversal from the
start point via Next(), thus INITSLOT counter value depends on the
starting instruction, which depends on _init presence.

pkg/compiler/inline_test.go

@@ -55,13 +55,13 @@ func TestInline(t *testing.T) {
 		a int
 		b pair
 	}
-	// local alias
-	func sum(a, b int) int {
-		return 42
-	}
 	var Num = 1
 	func Main() int {
 		%s
+	}
+	// local alias
+	func sum(a, b int) int {
+		return 42
 	}`
 	t.Run("no return", func(t *testing.T) {
 		src := fmt.Sprintf(srcTmpl, `inline.NoArgsNoReturn()