[mlir] Apply ClangTidyBugProne finding (NFC).

argument name 'outputType' in comment does not match parameter name 'outputTypes'

Author: akuegel

mlir/lib/Transforms/Utils/DialectConversion.cpp

@@ -1391,7 +1391,7 @@ Block *ConversionPatternRewriterImpl::applySignatureConversion(
           MaterializationKind::Source,
           OpBuilder::InsertPoint(newBlock, newBlock->begin()), origArg.getLoc(),
           /*valuesToMap=*/{origArg}, /*inputs=*/ValueRange(),
-          /*outputType=*/origArgType, /*originalType=*/Type(), converter);
+          /*outputTypes=*/origArgType, /*originalType=*/Type(), converter);
       appendRewrite<ReplaceBlockArgRewrite>(block, origArg, converter);
       continue;
     }
@@ -1496,7 +1496,7 @@ Value ConversionPatternRewriterImpl::findOrBuildReplacementValue(
       buildUnresolvedMaterialization(MaterializationKind::Source,
                                      computeInsertPoint(repl), value.getLoc(),
                                      /*valuesToMap=*/repl, /*inputs=*/repl,
-                                     /*outputType=*/value.getType(),
+                                     /*outputTypes=*/value.getType(),
                                      /*originalType=*/Type(), converter)
           .front();
   return castValue;
@@ -1552,7 +1552,7 @@ void ConversionPatternRewriterImpl::notifyOpReplaced(
       buildUnresolvedMaterialization(
           MaterializationKind::Source, computeInsertPoint(result),
           result.getLoc(), /*valuesToMap=*/{result}, /*inputs=*/ValueRange(),
-          /*outputType=*/result.getType(), /*originalType=*/Type(),
+          /*outputTypes=*/result.getType(), /*originalType=*/Type(),
           currentTypeConverter);
       continue;
     } else {