[Issue 15063] Template Instantiation Accepts Invalid Code

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15063

--- Comment #1 from Kenji Hara <k.hara.pg at gmail.com> ---
Reduced test case:

void test1(alias pred = "a == b", T)(T a)
{
    pragma(msg, 1);
}

void test1(int flag = 0, T)(T a)
{
    pragma(msg, 2);
}

void main()
{
    test1(1);
}

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