[Issue 19545] __traits(compiles, X) false positive, further uses of X succeed but don't link

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19545

--- Comment #7 from Salih Dincer <salihdb at hotmail.com> ---
No error, result is true:

void main()
{
  pragma(msg, __traits(compiles, inputRangeObject(RegexMatch!string.init))); 
  inputRangeObject(RegexMatch!string.init);
}
//import std.range, std.regex;/*
struct RegexMatch(T){}

class InputRangeObject(R){
    this(R){}
    R front(){ return R.init; }
}

InputRangeObject!R inputRangeObject(R)(R range) {
    return new InputRangeObject!R(range);
}//*/

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