src: fix build when using shared simdutf

src: fix build when using shared simdutf · nodejs/node@ce081bc

Original file line number	Diff line number	Diff line change
`@@ -174,7 +174,7 @@ MaybeLocal<Object> TranscodeLatin1ToUcs2(Environment* env,`
`174`	`174`	`const char* source,`
`175`	`175`	`const size_t source_length,`
`176`	`176`	`UErrorCode* status) {`
`177`		`- MaybeStackBuffer<UChar> destbuf(source_length);`
	`177`	`+ MaybeStackBuffer<char16_t> destbuf(source_length);`
`178`	`178`	`auto actual_length =`
`179`	`179`	`simdutf::convert_latin1_to_utf16le(source, source_length, destbuf.out());`
`180`	`180`	`if (actual_length == 0) {`
`@@ -218,7 +218,7 @@ MaybeLocal<Object> TranscodeUcs2FromUtf8(Environment* env,`
`218`	`218`	`UErrorCode* status) {`
`219`	`219`	`size_t expected_utf16_length =`
`220`	`220`	`simdutf::utf16_length_from_utf8(source, source_length);`
`221`		`- MaybeStackBuffer<UChar> destbuf(expected_utf16_length);`
	`221`	`+ MaybeStackBuffer<char16_t> destbuf(expected_utf16_length);`
`222`	`222`	`auto actual_length =`
`223`	`223`	`simdutf::convert_utf8_to_utf16le(source, source_length, destbuf.out());`
`224`	`224`