new tester; all tests categorized

tests/compiles/tcompiles.nim

@@ -0,0 +1,26 @@
+# test the new 'compiles' feature:
+
+template supports(opr, x: expr): bool {.immediate.} =
+  compiles(opr(x)) or compiles(opr(x, x))
+
+template ok(x: expr): stmt =
+  static: assert(x)
+
+template no(x: expr): stmt =
+  static: assert(not x)
+
+type
+  TObj = object
+
+var
+  myObj {.compileTime.}: TObj
+
+ok supports(`==`, myObj)
+ok supports(`==`, 45)
+
+no supports(`++`, 34)
+ok supports(`not`, true)
+ok supports(`+`, 34)
+
+no compiles(4+5.0 * "hallo")
+