macros: Add test for node comparsion

tests/macros/tnodecompare.nim

@@ -0,0 +1,39 @@
+discard """
+output: '''1
+0
+1
+0
+1
+0
+1
+0'''
+"""
+
+import macros
+
+macro test(a: typed, b: typed): expr =
+  newLit(a == b)
+
+echo test(1, 1)
+echo test(1, 2)
+
+type
+  Obj = object of RootObj
+  Other = object of RootObj
+
+echo test(Obj, Obj)
+echo test(Obj, Other)
+
+var a, b: int
+
+echo test(a, a)
+echo test(a, b)
+
+macro test2: expr =
+  newLit(bindSym"Obj" == bindSym"Obj")
+
+macro test3: expr =
+  newLit(bindSym"Obj" == bindSym"Other")
+
+echo test2()
+echo test3()