added testcase for #1679

tests/ccgbugs/tnocodegen_for_compiletime.nim

@@ -0,0 +1,9 @@
+# bug #1679
+import macros, tables, hashes
+proc hash(v: NimNode): Hash = 4  # performance is for suckers
+macro test(body: stmt): stmt {.immediate.} =
+  var a = initCountTable[NimNode]()
+  a.inc(body)
+
+test:
+  1 + 1