update comments with TODOs

Author: tgauth

dsc_lib/src/configure/mod.rs

@@ -319,6 +319,7 @@ impl Configurator {
                 end_datetime = chrono::Local::now();
             } else if dsc_resource.capabilities.contains(&Capability::Delete) {
                 if self.context.execution_type == ExecutionKind::WhatIf {
+                    // TODO: add delete what-if support
                     return Err(DscError::NotSupported("What-if execution not supported for delete".to_string()));
                 }
                 debug!("Resource implements delete and _exist is false");

dsc_lib/src/dscresources/command_resource.rs

@@ -131,7 +131,7 @@ pub fn invoke_set(resource: &ResourceManifest, cwd: &str, desired: &str, skip_te
     }
 
     if ExecutionKind::WhatIf == *execution_type {
-        // until resources implement their own what-if, return an error here
+        // TODO: continue execution when resources can implement what-if; only return an error here temporarily
         return Err(DscError::NotImplemented("what-if not yet supported for resources that implement pre-test".to_string()));
     }