[Issue 1199] New: Strange error messages when indexing empty arrays or strings at compile time

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1199

           Summary: Strange error messages when indexing empty arrays or
                    strings at compile time
           Product: D
           Version: 1.011
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Keywords: diagnostic
          Severity: trivial
          Priority: P3
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: deewiant at gmail.com


// Error: non-constant expression [][__dollar - 1u]
char a = (cast(char[])[])[$-1];

Using an immediate value like 0 in place of $-1 gives the sensible message
explaining that the index is out of bounds.

// Error: string index 4294967295 is out of bounds [0 .. 17540474638172160]
char b = ""[$-1];

Doesn't help here, though:

// Error: string index 0 is out of bounds [0 .. 17540474638172160]
char c = ""[0];

// Ditto
char d = ""[$];


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