Fix more lint

Author: sandersn

src/compiler/types.ts

@@ -2137,7 +2137,7 @@ namespace ts {
         /* @internal */ exportSymbol?: Symbol;  // Exported symbol associated with this symbol
         /* @internal */ constEnumOnlyModule?: boolean; // True if module contains only const enums or other modules with only const enums
         /* @internal */ isReferenced?: boolean; // True if the symbol is referenced elsewhere
-        /* @internal */ isDiscardable?: boolean;// True if a Javascript class property can be overwritten by a method
+        /* @internal */ isDiscardable?: boolean; // True if a Javascript class property can be overwritten by a method
     }
 
     /* @internal */