[llvm-dev] arg_iterator missing inc/dec operators

[Dmitry Babokin via llvm-dev]

Reid,

After your recent redefinition of arg_iterator, it's missing
increment/decrement operators (which people typically expect to be defined
for iterators). So some external code relying on this is broken. If it's
not intentional, would be nice to have it fixed.

Specific code that I is broken looks like this:

llvm::Function f;
foo(--f->arg_end()); // passing the last argument to the function.

Dmitry.
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