Add _lowWord to abi test

Author: Azoy

test/abi/macOS/arm64/stdlib.swift

@@ -385,6 +385,8 @@ Added: _$ss6Int128Vs35_ExpressibleByBuiltinIntegerLiteralsWP
 Added: _$ss6Int128VyABBi128_cfC
 Added: _$ss6Int128VyABxcSBRzlufC
 Added: _$ss6Int128VyABxcSzRzlufC
+Added: _$ss6Int128V8_lowWordSuvg
+Added: _$ss6Int128V8_lowWordSuvpMV
 
 // UInt128
 Added: _$sSYsSeRzs7UInt128V8RawValueSYRtzrlE4fromxs7Decoder_p_tKcfC
@@ -547,6 +549,8 @@ Added: _$ss7UInt128Vs35_ExpressibleByBuiltinIntegerLiteralsWP
 Added: _$ss7UInt128VyABBi128_cfC
 Added: _$ss7UInt128VyABxcSBRzlufC
 Added: _$ss7UInt128VyABxcSzRzlufC
+Added: _$ss7UInt128V8_lowWordSuvg
+Added: _$ss7UInt128V8_lowWordSuvpMV
 
 // Fixed-width integer &* customization point
 Added: _$ss17FixedWidthIntegerP2amoiyxx_xtFZTj

test/abi/macOS/x86_64/stdlib.swift

@@ -385,6 +385,8 @@ Added: _$ss6Int128Vs35_ExpressibleByBuiltinIntegerLiteralsWP
 Added: _$ss6Int128VyABBi128_cfC
 Added: _$ss6Int128VyABxcSBRzlufC
 Added: _$ss6Int128VyABxcSzRzlufC
+Added: _$ss6Int128V8_lowWordSuvg
+Added: _$ss6Int128V8_lowWordSuvpMV
 
 // UInt128
 Added: _$sSYsSeRzs7UInt128V8RawValueSYRtzrlE4fromxs7Decoder_p_tKcfC
@@ -547,6 +549,8 @@ Added: _$ss7UInt128Vs35_ExpressibleByBuiltinIntegerLiteralsWP
 Added: _$ss7UInt128VyABBi128_cfC
 Added: _$ss7UInt128VyABxcSBRzlufC
 Added: _$ss7UInt128VyABxcSzRzlufC
+Added: _$ss7UInt128V8_lowWordSuvg
+Added: _$ss7UInt128V8_lowWordSuvpMV
 
 // Fixed-width integer &* customization point
 Added: _$ss17FixedWidthIntegerP2amoiyxx_xtFZTj