[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/MacOSKeychainAPIChecker.cpp b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
index 0a675e5..d54196c 100644
--- a/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
@@ -224,7 +224,7 @@
 
   if (const loc::MemRegionVal *X = dyn_cast<loc::MemRegionVal>(&ArgV)) {
     StoreManager& SM = C.getStoreManager();
-    const MemRegion *V = SM.Retrieve(State->getStore(), *X).getAsRegion();
+    const MemRegion *V = SM.getBinding(State->getStore(), *X).getAsRegion();
     if (V)
       return getSymbolForRegion(C, V);
   }