Fix CQS signal facebook-hte-LocalVariableShadowWarning in fbcode/dwio/nimble

Differential Revision: D91022135

Author: Devmate Bot

dwio/nimble/encodings/tests/EncodingSelectionTest.cpp

@@ -192,9 +192,9 @@ void test(std::span<const T> values, std::vector<EncodingDetails> expected) {
   nimble::Vector<T> materialized{pool.get()};
   std::vector<velox::BufferPtr> newStringBuffers;
   const auto stringBufferFactory = [&](uint32_t totalLength) {
-    auto& buffer = newStringBuffers.emplace_back(
+    auto& stringBuffer = newStringBuffers.emplace_back(
         velox::AlignedBuffer::allocate<char>(totalLength, pool.get()));
-    return buffer->asMutable<void>();
+    return stringBuffer->asMutable<void>();
   };
   auto encoding =
       nimble::EncodingFactory::decode(*pool, serialized, stringBufferFactory);