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	// a function.			// a function.
	struct SpecSig {			struct SpecSig {
	// Hashing support, used to distinguish between ordinary, empty, or tombstone			// Hashing support, used to distinguish between ordinary, empty, or tombstone
	// keys.			// keys.
	unsigned Key = 0;			unsigned Key = 0;
	SmallVector<ArgInfo, 4> Args;			SmallVector<ArgInfo, 4> Args;

	bool operator==(const SpecSig &Other) const {			bool operator==(const SpecSig &Other) const {
	if (Key != Other.Key \|\| Args.size() != Other.Args.size())			if (Key != Other.Key)
	return false;			return false;
	for (size_t I = 0; I < Args.size(); ++I)			return Args == Other.Args;
	if (Args[I] != Other.Args[I])
	return false;
	return true;
	}			}

	friend hash_code hash_value(const SpecSig &S) {			friend hash_code hash_value(const SpecSig &S) {
	return hash_combine(hash_value(S.Key),			return hash_combine(hash_value(S.Key),
	hash_combine_range(S.Args.begin(), S.Args.end()));			hash_combine_range(S.Args.begin(), S.Args.end()));
	}			}
	};			};

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[FunctionSpecialization] Use SmallVector::operator== to simplify some code. NFCClosedPublic