Revert r326932: [DebugInfo] Support DWARF expressions in eh_frame

This reverts commit rr326932 because it broke lld/test/ELF/eh-frame-hdr-augmentation.s.

llvm-svn: 326953
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
index a9ea26c..c704c29 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
@@ -258,10 +258,9 @@
   return true;
 }
 
-void DWARFExpression::print(raw_ostream &OS, const MCRegisterInfo *RegInfo,
-                            bool IsEH) const {
+void DWARFExpression::print(raw_ostream &OS, const MCRegisterInfo *RegInfo) {
   for (auto &Op : *this) {
-    if (!Op.print(OS, this, RegInfo, IsEH)) {
+    if (!Op.print(OS, this, RegInfo, /* isEH */ false)) {
       uint32_t FailOffset = Op.getEndOffset();
       while (FailOffset < Data.getData().size())
         OS << format(" %02x", Data.getU8(&FailOffset));