From 51fd157635e11f7024dedf1d3a2a4c173f718b76 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Sat, 8 Jan 2022 11:56:42 -0800
Subject: [PATCH] Remove duplicate forward declarations (NFC)

---
 lldb/source/Plugins/SymbolFile/NativePDB/PdbIndex.h | 1 -
 mlir/include/mlir/Dialect/SCF/Transforms.h          | 1 -
 2 files changed, 2 deletions(-)

diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/PdbIndex.h b/lldb/source/Plugins/SymbolFile/NativePDB/PdbIndex.h
index 1b382e5263c1..edbdd9ee290b 100644
--- a/lldb/source/Plugins/SymbolFile/NativePDB/PdbIndex.h
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/PdbIndex.h
@@ -25,7 +25,6 @@ namespace llvm {
 namespace pdb {
 class DbiStream;
 class TpiStream;
-class TpiStream;
 class InfoStream;
 class PublicsStream;
 class GlobalsStream;
diff --git a/mlir/include/mlir/Dialect/SCF/Transforms.h b/mlir/include/mlir/Dialect/SCF/Transforms.h
index 9efbf83a2a11..8286d70c6f9a 100644
--- a/mlir/include/mlir/Dialect/SCF/Transforms.h
+++ b/mlir/include/mlir/Dialect/SCF/Transforms.h
@@ -37,7 +37,6 @@ namespace scf {
 class IfOp;
 class ForOp;
 class ParallelOp;
-class ForOp;
 
 /// Fuses all adjacent scf.parallel operations with identical bounds and step
 /// into one scf.parallel operations. Uses a naive aliasing and dependency