[analyzer] Avoid small vectors of non-default-constructibles.

Unconfuses certain compilers.

llvm-svn: 372942
(cherry picked from commit 4ed9793)

Author: haoNoQ

clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h

@@ -347,7 +347,7 @@ class CallEvent {
   ProgramStateRef invalidateRegions(unsigned BlockCount,
                                     ProgramStateRef Orig = nullptr) const;
 
-  using FrameBindingTy = std::pair<Loc, SVal>;
+  using FrameBindingTy = std::pair<SVal, SVal>;
   using BindingsTy = SmallVectorImpl<FrameBindingTy>;
 
   /// Populates the given SmallVector with the bindings in the callee's stack

clang/lib/StaticAnalyzer/Core/Store.cpp

@@ -52,7 +52,7 @@ StoreRef StoreManager::enterStackFrame(Store OldStore,
   Call.getInitialStackFrameContents(LCtx, InitialBindings);
 
   for (const auto &I : InitialBindings)
-    Store = Bind(Store.getStore(), I.first, I.second);
+    Store = Bind(Store.getStore(), I.first.castAs<Loc>(), I.second);
 
   return Store;
 }