Added test case for recursive methods.

tests/method/trecmeth.nim

@@ -0,0 +1,22 @@
+# Note: We only compile this to verify that code generation
+# for recursive methods works, no code is being executed
+
+type
+  Obj = ref object of TObject
+
+# Mutual recursion
+
+method alpha(x: Obj)
+method beta(x: Obj)
+
+method alpha(x: Obj) =
+  beta(x)
+
+method beta(x: Obj) =
+  alpha(x)
+
+# Simple recursion
+
+method gamma(x: Obj) =
+  gamma(x)
+