Add some missing anchors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145578 91177308-0d34-0410-b5e6-96231b3b80d8

lib/VMCore/Instructions.cpp

@@ -2005,6 +2005,8 @@ bool BinaryOperator::isExact() const {
 //                                CastInst Class
 //===----------------------------------------------------------------------===//
 
+void CastInst::anchor() {}
+
 // Just determine if this cast only deals with integral->integral conversion.
 bool CastInst::isIntegerCast() const {
   switch (getOpcode()) {

lib/VMCore/User.cpp

@@ -17,6 +17,8 @@ namespace llvm {
 //                                 User Class
 //===----------------------------------------------------------------------===//
 
+void User::anchor() {}
+
 // replaceUsesOfWith - Replaces all references to the "From" definition with
 // references to the "To" definition.
 //