In AS3 'inline' is not a keyword, it has to be specified as [Inline]

Author: elsassph

External/Plugins/AS3Context/Context.cs

@@ -107,7 +107,7 @@ public Context(AS3Settings initSettings)
                 "null", "true", "false", "try", "catch", "finally", "throw", "use", "namespace"
             };
             features.accessKeywords = new string[] { 
-                "extern", "dynamic", "inline", "final", "public", "private", "protected", "internal", "static", "override"
+                "extern", "dynamic", "final", "public", "private", "protected", "internal", "static", "override"
             };
             features.declKeywords = new string[] { "var", "function", "const", "namespace", "get", "set" };
             features.typesKeywords = new string[] { "import", "class", "interface" };

FlashDevelop/Bin/Debug/Settings/Languages/AS3.xml

@@ -38,7 +38,7 @@
 			param private return see serial serialData serialField since throws usage version langversion playerversion productversion
 		</keyword-class>
 		<keyword-class name="as3-additional-keywords3">
-			dynamic private public static intrinsic internal native override protected AS3 final inline
+			dynamic private public static intrinsic internal native override protected AS3 final
 		</keyword-class>
 		<keyword-class name="as3-additional-keywords4">
 			<!-- trace addEventListener removeEventListener hasListener addChild addChildAt removeChild removeChildAt -->