[midend-llvmirprint]修复进度（162/199），修复若干打印问题，修复若干ir生成逻辑问题

src/include/midend/IR.h

@@ -856,7 +856,7 @@ public:
       case kBitFtoI:
         return "BitFtoI";
       case kSRA:
-        return "SRA";
+        return "ashr";
       default:
         return "Unknown";
     }