Fix temporaries breaking (let ...) blocks, (gensym)

examples/debug.lysp

@@ -1 +0,0 @@
-(print (explain explain))

examples/macros.lysp

@@ -19,14 +19,16 @@
 (assert (= '(2 3 4 2 3 4) `(,@glob1 ,@glob1)))
 (assert (= '((((2 3 4)))) `(((,glob1)))))
 
-(defmacro debug (expression)
-  (print "DEBUG:" expression)
-  expression
-  )
-
 ; those are prelude, but defined in lysp itself:
 
-(debug
+(print "The previously printed expression is AFTER this one in the code")
+(compile-debug
+  (when #t
+    (print "a")
+    (print "b")
+    )
+  )
+(runtime-debug
   (when #t
     (print "a")
     (print "b")
@@ -43,3 +45,11 @@
   )
 
 
+; catch macro
+(print "Failing in a catch block...")
+(catch
+  (print a)
+  e (print "Caught an error:" e)
+  )
+
+(print "... doesn't fail the execution")