activated tests for tr macros

tests/patterns/tcse.nim

@@ -0,0 +1,13 @@
+discard """
+  output: "4"
+"""
+
+template cse{f(a, a, x)}(a: expr{(nkDotExpr|call|nkBracketExpr)&noSideEffect},
+                         f: expr, x: varargs[expr]): expr =
+  let aa = a
+  f(aa, aa, x)+4
+  
+var
+  a: array[0..10, int]
+  i = 3
+echo a[i] + a[i]

tests/patterns/tnoalias.nim

@@ -0,0 +1,16 @@
+discard """
+  output: "23"
+"""
+
+template optslice{a = b + c}(a: expr{noalias}, b, c: expr): stmt =
+  a = b
+  inc a, c
+
+var
+  x = 12
+  y = 10
+  z = 13
+
+x = y+z
+
+echo x

tests/patterns/tstmtlist.nim

@@ -1,6 +1,7 @@
 discard """
   output: '''0
-|12|34
+|12|
+34
 '''
 """