when zp option = dontuse, print error for any variable with @requirezp

compiler/src/prog8/compiler/astprocessing/AstChecker.kt

@@ -640,6 +640,9 @@ internal class AstChecker(private val program: Program,
                 err("string var can only be initialized with a string literal")
         }
 
+        if(compilerOptions.zeropage==ZeropageType.DONTUSE && decl.zeropage==ZeropageWish.REQUIRE_ZEROPAGE)
+            err("zeropage usage has been disabled by options")
+
         super.visit(decl)
     }
 

docs/source/todo.rst

@@ -3,7 +3,7 @@ TODO
 
 For next compiler release (7.7)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-- if zp option = dontuse, give error if any variable has @requirezp
+...
 
 Need help with
 ^^^^^^^^^^^^^^