This is the first step to build a better evaluation model for GRExprEngine.  A
new VisitLValue method is added to replace the old VisitLVal. The semantics
model becomes more explicit to separate rvalue evaluation from lvalue
evaluation.  


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57627 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/RValues.cpp b/lib/Analysis/RValues.cpp
index 337d479..2b57368 100644
--- a/lib/Analysis/RValues.cpp
+++ b/lib/Analysis/RValues.cpp
@@ -270,6 +270,7 @@
 // Utility methods for constructing RVals (both NonLVals and LVals).
 //===----------------------------------------------------------------------===//
 
+// Remove this method?
 RVal RVal::MakeVal(GRStateManager& SMgr, DeclRefExpr* E) {
   
   ValueDecl* D = cast<DeclRefExpr>(E)->getDecl();