Add some convenience methods for querying attributes, and
use them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44403 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/llvmAsmParser.cpp.cvs b/lib/AsmParser/llvmAsmParser.cpp.cvs
index 5907eec..c5b414c 100644
--- a/lib/AsmParser/llvmAsmParser.cpp.cvs
+++ b/lib/AsmParser/llvmAsmParser.cpp.cvs
@@ -5161,7 +5161,7 @@
   bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
   if (isVarArg) ParamTypeList.pop_back();
 
-  ParamAttrsList *PAL = 0;
+  const ParamAttrsList *PAL = 0;
   if (!Attrs.empty())
     PAL = ParamAttrsList::get(Attrs);
 
@@ -5664,7 +5664,7 @@
         GEN_ERROR("Invalid number of parameters detected");
     }
 
-    ParamAttrsList *PAL = 0;
+    const ParamAttrsList *PAL = 0;
     if (!Attrs.empty())
       PAL = ParamAttrsList::get(Attrs);
 
@@ -6094,7 +6094,7 @@
     }
 
     // Finish off the ParamAttrs and check them
-    ParamAttrsList *PAL = 0;
+    const ParamAttrsList *PAL = 0;
     if (!Attrs.empty())
       PAL = ParamAttrsList::get(Attrs);