Rename instead of removing.

Rename all ID fields to {resource_noun}_id instead of removing them
outright. This means people can still get at the info.

Leave project's id deleted. It has been marked as Removed for months.
I'm fine with cleaning it up before 1.0.0.

Also, update website docs.

google/resource_compute_ssl_certificate.go

@@ -2,6 +2,7 @@ package google
 
 import (
 	"fmt"
+	"strconv"
 
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
@@ -60,6 +61,11 @@ func resourceComputeSslCertificate() *schema.Resource {
 				ForceNew: true,
 			},
 
+			"certificate_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+
 			"project": &schema.Schema{
 				Type:     schema.TypeString,
 				Optional: true,
@@ -134,6 +140,7 @@ func resourceComputeSslCertificateRead(d *schema.ResourceData, meta interface{})
 	}
 
 	d.Set("self_link", cert.SelfLink)
+	d.Set("certificate_id", strconv.FormatUint(cert.Id, 10))
 
 	return nil
 }

google/resource_compute_target_http_proxy.go

@@ -3,6 +3,7 @@ package google
 import (
 	"fmt"
 	"log"
+	"strconv"
 
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
@@ -33,6 +34,11 @@ func resourceComputeTargetHttpProxy() *schema.Resource {
 				ForceNew: true,
 			},
 
+			"proxy_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+
 			"project": &schema.Schema{
 				Type:     schema.TypeString,
 				Optional: true,
@@ -128,6 +134,7 @@ func resourceComputeTargetHttpProxyRead(d *schema.ResourceData, meta interface{}
 	}
 
 	d.Set("self_link", proxy.SelfLink)
+	d.Set("proxy_id", strconv.FormatUint(proxy.Id, 10))
 
 	return nil
 }

google/resource_compute_target_https_proxy.go

@@ -3,10 +3,12 @@ package google
 import (
 	"fmt"
 	"log"
+	"strconv"
+
+	"regexp"
 
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
-	"regexp"
 )
 
 const (
@@ -54,6 +56,11 @@ func resourceComputeTargetHttpsProxy() *schema.Resource {
 				Computed: true,
 			},
 
+			"proxy_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+
 			"project": &schema.Schema{
 				Type:     schema.TypeString,
 				Optional: true,
@@ -171,6 +178,7 @@ func resourceComputeTargetHttpsProxyRead(d *schema.ResourceData, meta interface{
 	}
 
 	d.Set("ssl_certificates", proxy.SslCertificates)
+	d.Set("proxy_id", strconv.FormatUint(proxy.Id, 10))
 	d.Set("self_link", proxy.SelfLink)
 
 	return nil

google/resource_compute_url_map.go

@@ -2,6 +2,7 @@ package google
 
 import (
 	"fmt"
+	"strconv"
 
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/compute/v1"
@@ -62,6 +63,11 @@ func resourceComputeUrlMap() *schema.Resource {
 				},
 			},
 
+			"map_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+
 			"path_matcher": &schema.Schema{
 				Type:     schema.TypeList,
 				Optional: true,
@@ -309,6 +315,7 @@ func resourceComputeUrlMapRead(d *schema.ResourceData, meta interface{}) error {
 
 	d.SetId(name)
 	d.Set("self_link", urlMap.SelfLink)
+	d.Set("map_id", strconv.FormatUint(urlMap.Id, 10))
 	d.Set("fingerprint", urlMap.Fingerprint)
 
 	hostRuleMap := make(map[string]*compute.HostRule)

website/docs/r/compute_ssl_certificate.html.markdown

@@ -84,9 +84,9 @@ The following arguments are supported:
 In addition to the arguments listed above, the following computed attributes are
 exported:
 
-* `id` - A unique ID for the certificated, assigned by GCE.
+* `certificate_id` - A unique ID for the certificate, assigned by GCE.
 
 * `self_link` - The URI of the created resource.
 
 [1]: /docs/providers/google/r/compute_target_https_proxy.html
-[2]: /docs/configuration/resources.html#lifecycle
+[2]: /docs/configuration/resources.html#lifecycle

website/docs/r/compute_target_http_proxy.html.markdown

@@ -86,6 +86,6 @@ The following arguments are supported:
 In addition to the arguments listed above, the following computed attributes are
 exported:
 
-* `id` - A unique ID assigned by GCE.
+* `proxy_id` - A unique ID assigned by GCE.
 
 * `self_link` - The URI of the created resource.

website/docs/r/compute_target_https_proxy.html.markdown

@@ -96,6 +96,6 @@ The following arguments are supported:
 In addition to the arguments listed above, the following computed attributes are
 exported:
 
-* `id` - A unique ID assigned by GCE.
+* `proxy_id` - A unique ID assigned by GCE.
 
 * `self_link` - The URI of the created resource.

website/docs/r/compute_url_map.html.markdown

@@ -157,6 +157,6 @@ exported:
 
 * `fingerprint` - The unique fingerprint for this resource.
 
-* `id` - The GCE assigned ID of the resource.
+* `map_id` - The GCE assigned ID of the resource.
 
 * `self_link` - The URI of the created resource.