[tracing] Fix PartitionAlloc dumper reporting

Source/wtf/Partitions.cpp

Index: Source/wtf/Partitions.cpp
diff --git a/Source/wtf/Partitions.cpp b/Source/wtf/Partitions.cpp
index d3d295b784c84d244723b62dc03a2659cb01d92c..6e28e1d859aa50f0c9d4e05615fb524483ec681e 100644
--- a/Source/wtf/Partitions.cpp
+++ b/Source/wtf/Partitions.cpp
@@ -118,10 +118,10 @@ void Partitions::dumpMemoryStats(bool isLightDump, PartitionStatsDumper* partiti
     // accessed only on the main thread.
     ASSERT(isMainThread());
 
-    partitionDumpStatsGeneric(fastMallocPartition(), "fast_malloc_partition", isLightDump, partitionStatsDumper);
-    partitionDumpStatsGeneric(bufferPartition(), "buffer_partition", isLightDump, partitionStatsDumper);
-    partitionDumpStats(nodePartition(), "node_partition", isLightDump, partitionStatsDumper);
-    partitionDumpStats(layoutPartition(), "layout_partition", isLightDump, partitionStatsDumper);
+    partitionDumpStatsGeneric(fastMallocPartition(), "fast_malloc", isLightDump, partitionStatsDumper);
+    partitionDumpStatsGeneric(bufferPartition(), "buffer", isLightDump, partitionStatsDumper);
+    partitionDumpStats(nodePartition(), "node", isLightDump, partitionStatsDumper);
+    partitionDumpStats(layoutPartition(), "layout", isLightDump, partitionStatsDumper);
 }
 
 static NEVER_INLINE void partitionsOutOfMemoryUsing2G()