new tester; all tests categorized

tests/exception/tfinally.nim

@@ -0,0 +1,19 @@
+discard """
+  file: "tfinally.nim"
+  output: "came\nhere\n3"
+"""
+# Test return in try statement:
+
+proc main: int = 
+  try:
+    try:
+      return 1
+    finally:
+      echo("came")
+      return 2
+  finally: 
+    echo("here")
+    return 3
+
+echo main() #OUT came here 3
+