[LLVMdev] [Patch] Fix bug in llvm::SmallVectorIml<>::insert

[Johannes Schaub (litb)]

This fixes a bug in SmallVectorImpl<>::insert, which were not behaving 
correctly on inserting an empty range into an empty vector:

#include <llvm/ADT/SmallVector.h>
#include <cassert>

int main() {
  llvm::SmallVector<int, 1> v, w;
  llvm::SmallVector<int, 1>::iterator it =
    v.insert(v.end(), w.begin(), w.end());
  assert(it == v.end());
}

The insert function(s) would incorrectly return "this->end()-1". I attached 
the patch which I diff'ed from trunk. Is it important enough to be 
backported to llvm2.9 ?

I would like to ask someone to commit it to wherever it fits. Thanks!
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