[mlir][ods] Assert on static getAttrName methods

This patch makes ODS insert an assert when calling static `get*AttrName`
methods with a `OperationName` that the name is the same as the op's.
This prevents accidentally passing the wrong kind of name and getting an
erroneous attribute name.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D135698

mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp

@@ -907,6 +907,7 @@ void OpEmitter::genAttrNameGetters() {
 
     const char *const getAttrName = R"(
   assert(index < {0} && "invalid attribute index");
+  assert(name.getStringRef() == getOperationName() && "invalid operation name");
   return name.getRegisteredInfo()->getAttributeNames()[index];
 )";
     method->body() << formatv(getAttrName, attributes.size());