[honu] add two more tests

collects/tests/honu/math.honu

@@ -0,0 +1,16 @@
+#lang honu
+
+macro add_all(){
+  number:expression ...
+} {
+  syntax(
+    $ number + $ ... 0
+  )
+  /*
+  syntax(
+    $ printf("~a\n", number) $ ...
+    )
+    */
+}
+
+add_all 1 2 3 * 4;

collects/tests/honu/where.honu

@@ -0,0 +1,14 @@
+#lang honu
+
+var where = 0
+
+macro varwhere(where =){ unparsed where bind:identifier = any:expression }
+{ syntax({var bind = any
+          unparsed}) }
+
+varwhere { printf("x is ~a\n", x)
+           {
+             var x = 5;
+             x * 2
+           }
+         } where x = 2 + 1