llvm-symbolizer: flush internal caches functionality

llvm-svn: 177390
diff --git a/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp b/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
index 86ea34b..52ae49c 100644
--- a/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
+++ b/llvm/tools/llvm-symbolizer/LLVMSymbolize.cpp
@@ -186,6 +186,10 @@
   return ss.str();
 }
 
+void LLVMSymbolizer::flush() {
+  Modules.clear();
+}
+
 // Returns true if the object endianness is known.
 static bool getObjectEndianness(const ObjectFile *Obj, bool &IsLittleEndian) {
   // FIXME: Implement this when libLLVMObject allows to do it easily.