[analyzer] Rename Store::Retrieve() -> getBinding().

+ all the other Retrieve..() methods + a comment for ElementRegion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148011 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp b/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
index f5f0c16..afc1ca8 100644
--- a/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
@@ -133,7 +133,7 @@
                 return true;
             }
             else {
-              const SVal &V = StoreMgr.Retrieve(store, loc::MemRegionVal(FR));
+              const SVal &V = StoreMgr.getBinding(store, loc::MemRegionVal(FR));
               if (V.isUndef())
                 return true;
             }