Mark raise with no args under finally as an error because it leads to an exception in runtime on Python 2.7 (PY-29763)

python/src/com/jetbrains/python/validation/CompatibilityVisitor.java

@@ -264,8 +264,7 @@ public abstract class CompatibilityVisitor extends PyAnnotator {
     registerForAllMatchingVersions(level -> UnsupportedFeaturesUtil.raiseHasNoArgsUnderFinally(node, level),
                                    " not support this syntax. Raise with no arguments can only be used in an except block",
                                    node,
-                                   null,
-                                   false);
+                                   null);
 
     // raise 1, 2, 3
     registerForAllMatchingVersions(level -> UnsupportedFeaturesUtil.raiseHasMoreThenOneArg(node, level),

python/testData/highlighting/emptyRaise.py

@@ -9,4 +9,4 @@ except:
 try:
     raise ValueError
 finally:
-    raise
+    <error descr="Python version 2.7 does not support this syntax. Raise with no arguments can only be used in an except block">raise</error>

python/testData/inspections/PyCompatibilityInspection/tryFinallyEmptyRaisePy2.py

@@ -1,4 +1,4 @@
 try:
     raise ValueError
 finally:
-    <warning descr="Python version 2.6, 2.7 do not support this syntax. Raise with no arguments can only be used in an except block"><warning descr="Python version 2.7 does not support this syntax. Raise with no arguments can only be used in an except block">raise</warning></warning>
+    <error descr="Python version 2.7 does not support this syntax. Raise with no arguments can only be used in an except block"><warning descr="Python version 2.6, 2.7 do not support this syntax. Raise with no arguments can only be used in an except block">raise</warning></error>