Forward declare Optional<T> in STLExtras.h

WIP stats

3 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/MC/MCInstrAnalysis.cpp b/llvm/lib/MC/MCInstrAnalysis.cpp
index 54741fdd686..5e0c09f49fb 100644
--- a/llvm/lib/MC/MCInstrAnalysis.cpp
+++ b/llvm/lib/MC/MCInstrAnalysis.cpp
@@ -7,8 +7,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCInstrAnalysis.h"
-
 #include "llvm/ADT/APInt.h"
+#include "llvm/ADT/Optional.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCInstrDesc.h"
 #include "llvm/MC/MCInstrInfo.h"
diff --git a/llvm/lib/Support/CrashRecoveryContext.cpp b/llvm/lib/Support/CrashRecoveryContext.cpp
index a9e0fcc73b9..4af627e3254 100644
--- a/llvm/lib/Support/CrashRecoveryContext.cpp
+++ b/llvm/lib/Support/CrashRecoveryContext.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/CrashRecoveryContext.h"
+#include "llvm/ADT/Optional.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/ManagedStatic.h"
diff --git a/llvm/lib/Support/DJB.cpp b/llvm/lib/Support/DJB.cpp
index f06af7dfde4..d4f68ff8ae2 100644
--- a/llvm/lib/Support/DJB.cpp
+++ b/llvm/lib/Support/DJB.cpp
@@ -12,6 +12,7 @@
 
 #include "llvm/Support/DJB.h"
 #include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Optional.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/ConvertUTF.h"
 #include "llvm/Support/Unicode.h"