[Issue 4661] Array Literal Incompatible Type Error Msg Should Include Line Number

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4661


David Simcha <dsimcha at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|rejects-valid               |diagnostic
            Summary|Array of lazy sequence      |Array Literal Incompatible
                   |                            |Type Error Msg Should
                   |                            |Include Line Number


--- Comment #3 from David Simcha <dsimcha at yahoo.com> 2010-08-17 17:39:01 PDT ---
Ok, so this is a legit diagnostic bug.  I'll grant you that.  However, thinking
that Map!("a + 1", Range) and Map!("a + 2", Range) are the same type represents
a serious misunderstanding of template alias parameters.  The binding of the
lambda function to the Map instance happens at compile time, not runtime. 
Let's try a thought experiment, thinking at the C level.  What would happen if
Map!"a + 2" were cast to Map!"a + 1" and front() were called?

Map!"a + 1".front() would be called.  Inlined (probably) in Map!"a + 1".front()
is something like return _input.front + 1.

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