Add SERVICE_ADDRESS to generated resource names toString() (#2529)

Author: andreamlin

src/main/resources/com/google/api/codegen/java/resource_name.snip

@@ -101,7 +101,7 @@
 @private toString(resourceName)
   @@Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         @join property : resourceName.pathParams on ",".add(BREAK)
           "{@property.name}", {@property.name}
         @end

src/test/java/com/google/api/codegen/discogapic/testdata/java/java_simplecompute.v1.json.baseline

@@ -167,7 +167,7 @@ public final class ProjectDummyObjectName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "dummyObject", dummyObject,
         "project", project
         );
@@ -366,7 +366,7 @@ public final class ProjectDummyObjectResourceName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "project", project,
         "resource", resource
         );
@@ -565,7 +565,7 @@ public final class ProjectGlobalAddressName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "address", address,
         "project", project
         );
@@ -743,7 +743,7 @@ public final class ProjectName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "project", project
         );
   }
@@ -960,7 +960,7 @@ public final class ProjectRegionAddressName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "address", address,
         "project", project,
         "region", region
@@ -1162,7 +1162,7 @@ public final class ProjectRegionName implements ResourceName {
 
   @Override
   public String toString() {
-    return PATH_TEMPLATE.instantiate(
+    return  SERVICE_ADDRESS + PATH_TEMPLATE.instantiate(
         "project", project,
         "region", region
         );