tree 459e8a607cb7e3c59241f527a28d52bc84db5007
parent bc76dd06eb881c70c9775b74bab8b88cd747f173
author Douglas Gregor <dgregor@apple.com> 1228950074 +0000
committer Douglas Gregor <dgregor@apple.com> 1228950074 +0000

Added a warning when referencing an if's condition variable in the
"else" clause, e.g.,

  if (int X = foo()) {
  } else {
    if (X) { // warning: X is always zero in this context
    }
  }

Fixes rdar://6425550 and lets me think about something other than
DeclContext.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60858 91177308-0d34-0410-b5e6-96231b3b80d8