[5.3] Add soft deletes timestamp with timezone to database blueprint (#…

…15737)

- Creates methods `softDeletesTz()` and `dropSoftDeletesTz()` to database migration blueprint

src/Illuminate/Database/Schema/Blueprint.php

@@ -316,6 +316,16 @@ public function dropSoftDeletes()
         $this->dropColumn('deleted_at');
     }
 
+    /**
+     * Indicate that the soft delete column should be dropped.
+     *
+     * @return void
+     */
+    public function dropSoftDeletesTz()
+    {
+        $this->dropSoftDeletes();
+    }
+
     /**
      * Indicate that the remember token column should be dropped.
      *
@@ -821,6 +831,16 @@ public function softDeletes()
         return $this->timestamp('deleted_at')->nullable();
     }
 
+    /**
+     * Add a "deleted at" timestampTz for the table.
+     *
+     * @return \Illuminate\Support\Fluent
+     */
+    public function softDeletesTz()
+    {
+        return $this->timestampTz('deleted_at')->nullable();
+    }
+
     /**
      * Create a new binary column on the table.
      *