schemahelper: Allow list(any) to be passed into dynamic block's for_each

[radeksimko]

When for_each was initially introduced as a "schema extension" we thought it has the same constraints as the "top level" for_each in that it doesn't allow lists. However, since dynamic does not have count inside, the for_each there does allow iterating over lists.

So the updated schema reflects the reality more accurately.

This impacts all functionality driven by schema, i.e.

• completion
• hover
• go-to-definition
• go-to-references
• semantic highlighting
• validation

Example

terraform {
  required_providers {
    cloudinit = {
      source  = "hashicorp/cloudinit"
      version = "~> 2.3"
    }
  }
}

variable "parts" {
  type = list(object({
    filename     = string
    content_type = string
    content      = string
  }))
  default = [
    {
      filename     = "hello-script.sh"
      content_type = "text/x-shellscript"
      content      = "echo 'foo'"
    },
    {
      filename     = "cloud-config.yaml"
      content_type = "text/cloud-config"
      content      = "moot = 42"
    }
  ]
}

data "cloudinit_config" "foobar" {
  gzip          = false
  base64_encode = false

  dynamic "part" {
    for_each = var.parts
    content {
      filename     = part.value.filename
      content_type = part.value.content_type
      content      = part.value.content
    }
  }
}

UX Before

UX After