Remove non-reserved keywords.

Author: schungx

package.json

@@ -4,7 +4,7 @@
 	"displayName": "Rhai Language Support",
 	"description": "Syntax highlighting for Rhai scripts",
 	"publisher": "rhaiscript",
-	"version": "0.6.3",
+	"version": "0.6.4",
 	"icon": "assets/icon.png",
 	"homepage": "https://rhai.rs",
 	"bugs": {
@@ -107,4 +107,4 @@
 		"tslint": "^6.0.0",
 		"typescript": "^3.8.2"
 	}
-}
+}

syntax/rhai.YAML-tmLanguage

@@ -508,4 +508,4 @@ repository:
     - name: support.function.rhai
       match: \b(print|debug|call|curry|eval|type_of|is_def_var|is_def_fn|is_shared)\b
     - name: invalid.illegal.keyword.rhai
-      match: \b(var|static|begin|end|shared|each|then|goto|exit|unless|match|case|public|protected|new|use|with|module|package|super|thread|spawn|go|await|async|sync|yield|default|void|null|nil)\b
+      match: \b(var|static|shared|goto|exit|match|case|public|protected|new|use|with|module|package|super|thread|spawn|go|await|async|sync|yield|default|void|null|nil)\b

syntax/rhai.tmLanguage.json

@@ -817,7 +817,7 @@
         },
         {
           "name": "invalid.illegal.keyword.rhai",
-          "match": "\\b(var|static|begin|end|shared|each|then|goto|exit|unless|match|case|public|protected|new|use|with|module|package|super|thread|spawn|go|await|async|sync|yield|default|void|null|nil)\\b"
+          "match": "\\b(var|static|shared|goto|exit|match|case|public|protected|new|use|with|module|package|super|thread|spawn|go|await|async|sync|yield|default|void|null|nil)\\b"
         }
       ]
     }