emptyarg.asm: add expansion test for a range with a single parameter

Add a test for %{1:1}, as reported in BR 3392611.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
diff --git a/test/emptyarg.asm b/test/emptyarg.asm
index f164fe4..af02e37 100644
--- a/test/emptyarg.asm
+++ b/test/emptyarg.asm
@@ -50,6 +50,10 @@
 	xyzzy "with","empty",EMPTY
 %endmacro
 
+%macro orange 1
+	db %{1:1}
+%endmacro
+
 %macro prange1 2-3
 	db %{1:2}, 0%3
 %endmacro
@@ -137,3 +141,7 @@
 	prange2 {121},{122}
 	prange2 {121},122,{123}
 	prange2 121,{122,122},123
+
+	orange 130
+	orange 130, 131
+	orange {130, 131}