Explicitly include <cassert> when using assert

Depending on the OS used, a module-enabled build can fail due to the
special handling <cassert> gets as textual header.

lib/Support/APSInt.cpp

@@ -14,6 +14,7 @@
 #include "llvm/ADT/APSInt.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/StringRef.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Support/FormatVariadic.cpp

@@ -6,6 +6,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/FormatVariadic.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Support/IntEqClasses.cpp

@@ -18,6 +18,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/IntEqClasses.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Support/IntervalMap.cpp

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/IntervalMap.h"
+#include <cassert>
 
 namespace llvm {
 namespace IntervalMapImpl {

lib/Support/KnownBits.cpp

@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/KnownBits.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Support/PrettyStackTrace.cpp

@@ -22,6 +22,7 @@
 #include "llvm/Support/raw_ostream.h"
 
 #include <atomic>
+#include <cassert>
 #include <cstdarg>
 #include <cstdio>
 #include <tuple>

lib/Support/Regex.cpp

@@ -14,6 +14,7 @@
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Twine.h"
+#include <cassert>
 #include <string>
 
 // Important this comes last because it defines "_REGEX_H_". At least on

lib/Support/StringPool.cpp

@@ -12,6 +12,7 @@
 
 #include "llvm/Support/StringPool.h"
 #include "llvm/ADT/StringRef.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Support/Triple.cpp

@@ -14,6 +14,7 @@
 #include "llvm/Support/Host.h"
 #include "llvm/Support/SwapByteOrder.h"
 #include "llvm/Support/TargetParser.h"
+#include <cassert>
 #include <cstring>
 using namespace llvm;
 

lib/Support/VersionTuple.cpp

@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 #include "llvm/Support/VersionTuple.h"
 #include "llvm/Support/raw_ostream.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/TableGen/TableGenBackend.cpp

@@ -13,6 +13,7 @@
 #include "llvm/TableGen/TableGenBackend.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/raw_ostream.h"
+#include <cassert>
 
 using namespace llvm;
 

lib/Target/AArch64/AArch64StackOffset.h

@@ -16,6 +16,7 @@
 
 #include "llvm/Support/MachineValueType.h"
 #include "llvm/Support/TypeSize.h"
+#include <cassert>
 
 namespace llvm {
 

lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp

@@ -12,6 +12,7 @@
 
 #include "PPCMCAsmInfo.h"
 #include "llvm/ADT/Triple.h"
+#include <cassert>
 
 using namespace llvm;
 

utils/TableGen/CodeGenHwModes.h

@@ -12,6 +12,7 @@
 #define LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H
 
 #include "llvm/ADT/StringMap.h"
+#include <cassert>
 #include <map>
 #include <string>
 #include <vector>

utils/TableGen/CodeGenInstruction.h

@@ -16,6 +16,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/MachineValueType.h"
 #include "llvm/Support/SMLoc.h"
+#include <cassert>
 #include <string>
 #include <utility>
 #include <vector>