Where does my error come from? Or: I think we need something similar to source maps?

[mauve]

Is your feature request related to a problem? Please describe.
I am debugging a moderately complicated template which uses loops to create role assignments. The deployment fails for because it complains about duplicate role assignments.

I have a handful of assignments which look like this:

resource operator_D2Clocal_DataSender_RoleAssignment 'Microsoft.Authorization/roleAssignments@2020-04-01-preview' = [for oid in operatorsObjectIDs: {
  scope: queueD2Clocal
  name: guid(resourcePrefix, 'operator_D2Clocal_DataSender_RoleAssignment', oid)
  properties: {
    roleDefinitionId: roleDefinition_Azure_Service_Bus_Data_Sender
    principalId: oid
  }
}]

During the deployment they fail with "duplicate role assignment" or so, at this point I only see the GUID (name), but I have no idea which GUID is which assignment.

Describe the solution you'd like

I would like for errors during deployment to point to the correct resource or property and line:column of my bicep file.

[shenglol]

Dup of #855.

[alex-frankel]

Closing as dup