ICU-23271 Fix a possible error about ambiguous overloads of `U_ICU_NAMESPACE::internal::toU16StringView`#3786

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matthew-wozniczka wants to merge 4 commits intounicode-org:mainfrom

matthew-wozniczka:bugfix/ICU-23271

Commits on Dec 3, 2025

[ICU-23271] Fix the error `include\unicode\unistr.h(2228,31): error C2668: 'sbicu_77::internal::toU16StringView': ambiguous call to overloaded function` when compiling with visual studio 2022 when …
matthew-wozniczka
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[ICU-23271] Revert changes to `enable_if` conditions on `toU16StringViewNullable` overloads (didn't notice these _weren't_ called `toU16StringView` earlier) from previous commit
matthew-wozniczka
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[ICU-23271] Fix `couldn't deduce template parameter ‘T’` compile errors related to my recent change (It's a bit strange it worked when _using_ the header from our code?)
matthew-wozniczka
committed

Commits on Dec 4, 2025

[ICU-23271] Remove recently-added `DirectlyConvertibleToU16StringView` in favour of direct use of `std::is_convertible_t` definition based on PR comment.
matthew-wozniczka
committed