Fix bad pop on bare except-finally

src/compiler.c

@@ -1820,6 +1820,7 @@ _anotherExcept:
 			emitByte(OP_BEGIN_FINALLY);
 			exitJumps = 0;
 			if (nextJump != -1) {
+				emitByte(OP_NONE);
 				patchJump(nextJump);
 				emitByte(OP_POP);
 			}

test/testBareFinally.krk

@@ -0,0 +1,18 @@
+try:
+    raise ValueError()
+except ValueError as e:
+    print(repr(e))
+finally:
+    print("Done?")
+
+try:
+    print("try")
+finally:
+    print('finally')
+
+try:
+    print('try')
+except Exception as e:
+    print('except')
+finally:
+    print('finally')

test/testBareFinally.krk.expect

@@ -0,0 +1,6 @@
+ValueError(None)
+Done?
+try
+finally
+try
+finally