[analyzer] InnerPointerChecker: improve warning messages and notes.

Differential Revision: https://reviews.llvm.org/D49570

llvm-svn: 339489
diff --git a/clang/lib/StaticAnalyzer/Checkers/AllocationState.h b/clang/lib/StaticAnalyzer/Checkers/AllocationState.h
index a6908bd..c8193f7 100644
--- a/clang/lib/StaticAnalyzer/Checkers/AllocationState.h
+++ b/clang/lib/StaticAnalyzer/Checkers/AllocationState.h
@@ -26,6 +26,11 @@
 /// AF_InnerBuffer symbols.
 std::unique_ptr<BugReporterVisitor> getInnerPointerBRVisitor(SymbolRef Sym);
 
+/// 'Sym' represents a pointer to the inner buffer of a container object.
+/// This function looks up the memory region of that object in
+/// DanglingInternalBufferChecker's program state map.
+const MemRegion *getContainerObjRegion(ProgramStateRef State, SymbolRef Sym);
+
 } // end namespace allocation_state
 
 } // end namespace ento