[Sema] Remove a dead assignment, NFC.

The assignment to NextIsDereference is either followed by (1) another,
unrelated assignment to NextIsDereference or by (2) an early loop exit.

Found by clang's static analyzer: http://llvm.org/reports/scan-build

(While we're at it fix a typo.)

llvm-svn: 285879

1 files changed, 2 insertions, 3 deletions

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index fdb5fb5bd28..114dba31d93 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -9880,15 +9880,14 @@ static void DiagnoseConstAssignment(Sema &S, const Expr *E,
   // a note to the error.
   bool DiagnosticEmitted = false;
 
-  // Track if the current expression is the result of a derefence, and if the
-  // next checked expression is the result of a derefence.
+  // Track if the current expression is the result of a dereference, and if the
+  // next checked expression is the result of a dereference.
   bool IsDereference = false;
   bool NextIsDereference = false;
 
   // Loop to process MemberExpr chains.
   while (true) {
     IsDereference = NextIsDereference;
-    NextIsDereference = false;
 
     E = E->IgnoreParenImpCasts();
     if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) {