Update PSL next_event_a example as ghdl issue ghdl/ghdl#2157 was fixed

README.md

@@ -100,7 +100,6 @@ The next lists will grow during further development
 
 ## Supported, but under investigation
 
-* `next_event_a[i to j]` operator
 * `eventually!` behaviour with liveness proofs, see [GHDL issue 1345](https://github.com/ghdl/ghdl/issues/1345)
 
 ## Further Ressources

src/psl_next_event_a.vhd

@@ -32,10 +32,11 @@ begin
   default clock is rising_edge(clk);
 
   -- Check for one possible value of b
-  -- Both assertions should hold
-  -- Assertions don't hold, assuming GHDL bug
-  NEXT_EVENT_0_a : assert always ((a and b = x"4") -> next_event_a(c)[1 to 4](b = x"4"));
-  NEXT_EVENT_1_a : assert always ((a and b = x"5") -> next_event_a(c)[1 to 4](b = x"5"));
+  -- Both assertions hold (see ghdl/ghdl#2157)
+  NEXT_EVENT_0_a : assert always ((a and b = x"4") -> next_event_a(c)[1 to 4](b = x"4"))
+    report "NEXT_EVENT_0_a failed";
+  NEXT_EVENT_1_a : assert always ((a and b = x"5") -> next_event_a(c)[1 to 4](b = x"5"))
+    report "NEXT_EVENT_1_a failed";
 
 
   -- Check for all possible values of b