Drop 'const'

llvm-svn: 36662
diff --git a/llvm/tools/opt/GraphPrinters.cpp b/llvm/tools/opt/GraphPrinters.cpp
index 9b41ebc..5bf9088 100644
--- a/llvm/tools/opt/GraphPrinters.cpp
+++ b/llvm/tools/opt/GraphPrinters.cpp
@@ -60,7 +60,7 @@
 
 namespace {
   struct CallGraphPrinter : public ModulePass {
-    static const char ID; // Pass ID, replacement for typeid
+    static char ID; // Pass ID, replacement for typeid
     CallGraphPrinter() : ModulePass((intptr_t)&ID) {}
 
     virtual bool runOnModule(Module &M) {
@@ -77,7 +77,7 @@
     }
   };
 
-  const char CallGraphPrinter::ID = 0;
+  char CallGraphPrinter::ID = 0;
   RegisterPass<CallGraphPrinter> P2("print-callgraph",
                                     "Print Call Graph to 'dot' file");
 }