[Issue 13942] New: Bad template error message

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13942

          Issue ID: 13942
           Summary: Bad template error message
           Product: D
           Version: D2
          Hardware: x86_64
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: DMD
          Assignee: nobody at puremagic.com
          Reporter: code at benjamin-thaut.de

The following code:

import std.conv;

void main(string[] args)
{
    auto t = to!double();
}

Gives the error message when compiled with dmd 2.066:

/usr/include/dlang/dmd/std/conv.d(278): Error: template instance
isRawStaticArray!() does not match template declaration isRawStaticArray(T,
A...)

When compiling with dmd 2.065:
/opt/compilers/dmd2/include/std/conv.d(280): Error: template instance
isRawStaticArray!() does not match template declaration isRawStaticArray(T,
A...) test.d(5): Error: template std.conv.to cannot deduce function from
argument types !(double)(), candidates are:
/opt/compilers/dmd2/include/std/conv.d(277): std.conv.to(T)

The error message from dmd 2.065 is cleary better and actually points to the
correct file/line where the issue is located. The error dmd 2.066 gives is
completely useless in actually finding the issue.

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