Fix invalid symbol file inspection reporting an error for commands.sym

Author: waleedyaseen

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 ### Fixed
 - Fix regular expressions not being allowed in hook transmits list.
+- Fix invalid symbol file inspection reporting an error for "commands.sym".
 
 ### Changed
 - Inspections that require symbols will no longer run on files outside the project.

src/main/kotlin/io/runescript/plugin/ide/inspections/RuneScriptInvalidSymbolFileInspection.kt

@@ -25,6 +25,10 @@ class RuneScriptInvalidSymbolFileInspection : LocalInspectionTool() {
         }
         val name = file.containingFile.name
         val typeName = name.substring(0, name.indexOf('.'))
+        if (typeName == "commands") {
+            // Technically this is not a type, but is required by the compiler.
+            return null;
+        }
         if (RsPrimitiveType.lookupOrNull(typeName) == null) {
             return arrayOf(
                 manager.createProblemDescriptor(