[Issue 15351] New: foreach by ref accepted, although front returns by value

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15351

          Issue ID: 15351
           Summary: foreach by ref accepted, although front returns by
                    value
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: schuetzm at gmx.net

This compiles, but IMO shouldn't, because S.front doesn't return by ref:

struct S {
    @property int front() { return 0; }
    @property bool empty() { return false; }
    void popFront() { }
}

void main() {
    foreach(ref i; S()) { }
}

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