clang-format doesn't handle template variables and operators correctly

[cjdb]

Given

template <class T>
inline constexpr bool signed_integral = std::is_integral_v<T> && std::is_signed_v<T>;

clang-format will stylise as

template <class T>
inline constexpr bool signed_integral =
    std::is_integral_v<T>&& std::is_signed_v<T>;

when it should be stylised as

template <class T>
inline constexpr bool signed_integral =
    std::is_integral_v<T> && std::is_signed_v<T>;
//                       ^

I'm unable to provide system details or clang-format details at present, but my estimate is that this clang-format build is at most a fortnight old.

[llvmbot]

@llvm/issue-subscribers-clang-format

[llvmbot]

@llvm/issue-subscribers-bug

[mkurdej]

Reproduced with LLVM style (pointer alignment: right) with all clang-format versions since 3.7 until current main:

// OK:
bool signed_integral = std::is_integral_v<int> && std::is_signed_v<int>;

// BAD:
template <class T>
bool signed_integral = std::is_integral_v<int> &&std::is_signed_v<int>;

[mkurdej]

Revision URI: https://reviews.llvm.org/D121456

[mkurdej]

Reopening as the patch provoked #54374.