nestedTryStmts removed

It makes tests fail and they work fine without. Given my ignorance of
the exact workings, I can only rely on the tests.

tests/run/tfinally.nim

@@ -1,6 +1,8 @@
 discard """
   file: "tfinally.nim"
-  output: "came here 3"
+  output: "came
+here
+3"
 """
 # Test return in try statement:
 
@@ -9,10 +11,10 @@ proc main: int =
     try:
       return 1
     finally:
-      stdout.write("came ")
+      echo("came")
       return 2
   finally: 
-    stdout.write("here ")
+    echo("here ")
     return 3
     
 echo main() #OUT came here 3

tests/run/tfinally2.nim

@@ -1,6 +1,9 @@
 discard """
   file: "tfinally2.nim"
-  output: "ABCD"
+  output: "A
+B
+C
+D"
 """
 # Test break in try statement:
 
@@ -11,15 +14,15 @@ proc main: int =
         try:
           break AB
         finally:
-          stdout.write("A")
-        stdout.write("skipped")
+          echo("A")
+        echo("skipped")
       finally: 
         block B:
-          stdout.write("B")
-      stdout.write("skipped")
-    stdout.write("C")
+          echo("B")
+      echo("skipped")
+    echo("C")
   finally:
-    stdout.writeln("D")
+    echo("D")
     
 discard main() #OUT ABCD