Parameter input failure: Parser: Parameter '<parameterName>' not found in context for nested parameters

[Gijsreyn]

Prerequisites

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Summary

While working on the fix for #1115, another issue arose. Nested parameters (or a parameter depending on another) return an input failure. Take the following configuration document:

$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
parameters:
  basePrefix:
    type: string
    defaultValue: base
  computedPrefix:
    type: string
    defaultValue: "[concat(parameters('basePrefix'), '-computed')]"
resources:
- name: "test"
  type: Microsoft.DSC.Debug/Echo
  properties:
    output: "[concat('Generated by ', parameters('computedPrefix'))]"
'@

Running the above example errors out: ERROR Parameter input failure: Parser: Parameter 'basePrefix' not found in context

Steps to reproduce

Run the above configuration document.

Expected behavior

Nested parameters are allowed.

Actual behavior

ERROR Parameter input failure: Parser: Parameter 'basePrefix' not found in context

Error details

Environment data

Name                           Value
----                           -----
PSVersion                      7.5.3
PSEdition                      Core
GitCommitId                    7.5.3
OS                             Microsoft Windows 10.0.26100
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Version

dsc 3.2.0-preview.5

Visuals

No response