Fix build with LLVM top of tree.

cbackend.cpp

@@ -2512,7 +2512,11 @@ void CWriter::printModuleTypes() {
 
   // Get all of the struct types used in the module.
   std::vector<StructType*> StructTypes;
+#if defined(LLVM_3_0) || defined(LLVM_3_1)
   TheModule->findUsedStructTypes(StructTypes);
+#else
+  TheModule->findUsedStructTypes(StructTypes, false);
+#endif
 
   // Get all of the array types used in the module
   std::vector<ArrayType*> ArrayTypes;

type.cpp

@@ -791,7 +791,7 @@ EnumType::GetDIType(llvm::DIDescriptor scope) const {
                                             32 /* align in bits */,
                                             elementArray
 #if !defined(LLVM_3_0) && !defined(LLVM_3_1)
-                                            , llvm::DIType()
+                                            , llvm::DIType(), 0
 #endif
                                             );