Yes, I know this is really annoying. I use the NSString path more often than the NSSet , and apparently xCode does not accept usage frequency and does not have auto-hint ranking.
I used one way around this. Its a kind of hack, but as programmers without hacks, where are we;)
I used to create macros. So you can create one like this:
#define xNSString NSString
This way, xCode automatically indicates what you need.
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