[API Proposal]: SVE: Rename LoadVector extensions to match the type of the address

[a74nh]

These APIs were approved in #94006:

public static unsafe Vector<long> LoadVectorByteSignExtendToInt64(sbyte* address); // LD1SB
public static unsafe Vector<ushort> LoadVectorByteSignExtendToUInt16(sbyte* address); // LD1SB
public static unsafe Vector<uint> LoadVectorByteSignExtendToUInt32(sbyte* address); // LD1SB
public static unsafe Vector<ulong> LoadVectorByteSignExtendToUInt64(sbyte* address); // LD1SB

public static unsafe Vector<int> LoadVectorInt16NonFaultingZeroExtendToInt32(Vector<int> mask, ushort* address); // LDNF1H
public static unsafe Vector<long> LoadVectorInt16NonFaultingZeroExtendToInt64(Vector<long> mask, ushort* address); // LDNF1H
public static unsafe Vector<uint> LoadVectorInt16NonFaultingZeroExtendToUInt32(Vector<uint> mask, ushort* address); // LDNF1H
public static unsafe Vector<ulong> LoadVectorInt16NonFaultingZeroExtendToUInt64(Vector<ulong> mask, ushort* address); // LDNF1H

public static unsafe Vector<long> LoadVectorInt32NonFaultingZeroExtendToInt64(Vector<long> mask, uint* address); // LDNF1W
public static unsafe Vector<ulong> LoadVectorInt32NonFaultingZeroExtendToUInt64(Vector<ulong> mask, uint* address); // LDNF1W

public static unsafe Vector<long> LoadVectorInt32ZeroExtendToInt64(uint* address); // LD1W
public static unsafe Vector<ulong> LoadVectorInt32ZeroExtendToUInt64(uint* address); // LD1W

public static unsafe Vector<T> LoadVectorInt32ZeroExtendFirstFaulting(uint* address); // LDFF1W // predicated

public static unsafe Vector<T> LoadVectorInt16ZeroExtendFirstFaulting(ushort* address); // LDFF1H // predicated

The following was implemented:

public static unsafe Vector<long> LoadVectorSByteSignExtendToInt64(sbyte* address); // LD1SB
public static unsafe Vector<ushort> LoadVectorSByteSignExtendToUInt16(sbyte* address); // LD1SB
public static unsafe Vector<uint> LoadVectorSByteSignExtendToUInt32(sbyte* address); // LD1SB
public static unsafe Vector<ulong> LoadVectorSByteSignExtendToUInt64(sbyte* address); // LD1SB

public static unsafe Vector<int> LoadVectorUInt16NonFaultingZeroExtendToInt32(Vector<int> mask, ushort* address); // LDNF1H
public static unsafe Vector<long> LoadVectorUInt16NonFaultingZeroExtendToInt64(Vector<long> mask, ushort* address); // LDNF1H
public static unsafe Vector<uint> LoadVectorUInt16NonFaultingZeroExtendToUInt32(Vector<uint> mask, ushort* address); // LDNF1H
public static unsafe Vector<ulong> LoadVectorUInt16NonFaultingZeroExtendToUInt64(Vector<ulong> mask, ushort* address); // LDNF1H

public static unsafe Vector<long> LoadVectorUInt32NonFaultingZeroExtendToInt64(Vector<long> mask, uint* address); // LDNF1W
public static unsafe Vector<ulong> LoadVectorUInt32NonFaultingZeroExtendToUInt64(Vector<ulong> mask, uint* address); // LDNF1W

public static unsafe Vector<long> LoadVectorUInt32ZeroExtendToInt64(uint* address); // LD1W
public static unsafe Vector<ulong> LoadVectorUInt32ZeroExtendToUInt64(uint* address); // LD1W

public static unsafe Vector<T> LoadVectorUInt32ZeroExtendFirstFaulting(uint* address); // LDFF1W // predicated

public static unsafe Vector<T> LoadVectorUInt16ZeroExtendFirstFaulting(ushort* address); // LDFF1H // predicated

In the implemented version, the type after the LoadVector in the function name matches the type of the address argument.

This review is to approve the implemented versions

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