update elements and fix some bugs

lib/src/prism/tests/languages/erlang/keyword_feature.test

Index: lib/src/prism/tests/languages/erlang/keyword_feature.test
diff --git a/lib/src/prism/tests/languages/erlang/keyword_feature.test b/lib/src/prism/tests/languages/erlang/keyword_feature.test
new file mode 100644
index 0000000000000000000000000000000000000000..3af1da3d3933fd8ff55525c34a52522b7a1ced56
--- /dev/null
+++ b/lib/src/prism/tests/languages/erlang/keyword_feature.test
@@ -0,0 +1,15 @@
+fun when case of
+end if receive
+after try catch
+
+----------------------------------------------------
+
+[
+	["keyword", "fun"], ["keyword", "when"], ["keyword", "case"], ["keyword", "of"],
+	["keyword", "end"], ["keyword", "if"], ["keyword", "receive"],
+	["keyword", "after"], ["keyword", "try"], ["keyword", "catch"]
+]
+
+----------------------------------------------------
+
+Checks for all keywords.