Flush cache causes Entity API PHP notice with Search API

Steps to reproduce:

1. Install Search API
2. Search API Solr
3. Create index on a node that's been set up
4. Flush all caches

Offending line shown when flushing caches:

Notice: Undefined index: name in EntityMetadataWrapper->__toString() (line 159 of [...]/sites/all/modules/entity/includes/entity.wrapper.inc).

Tracking down line 159 I've changed the line from

return isset($this->info) ? 'Property ' . $this->info['name'] : $this->type;

to...

return isset($this->info) && isset($this->info['name']) ? 'Property ' . $this->info['name'] : $this->type;

...as this is a more failsafe check on $this->info['name'].

I guess it's expected that if $this->info exists then a key of name must exist also, but there is a nuance in the Search API which doesn't have the name key.

Patch to follow...