ReadOnlySpan<char>.EndsWith using char instead of string?

[Symbai]

How can I check if a char-based span ends with a single character (in a readable way) without using a string? I.e. instead of:

var s = "test".AsSpan();
bool b = s.EndsWith("t".AsSpan());

something like:

var s = "test".AsSpan();
bool b = s.EndsWith('t');

[huoyaoyuan]

#87689
Already merged in 9.0