Revert r129235 pending a vetting of the EH rewrite.

--- Reverse-merging r129235 into '.':
D    test/Feature/bb_attrs.ll
U    include/llvm/BasicBlock.h
U    include/llvm/Bitcode/LLVMBitCodes.h
U    lib/VMCore/AsmWriter.cpp
U    lib/VMCore/BasicBlock.cpp
U    lib/AsmParser/LLParser.cpp
U    lib/AsmParser/LLLexer.cpp
U    lib/AsmParser/LLToken.h
U    lib/Bitcode/Reader/BitcodeReader.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129259 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/BasicBlock.h

@@ -74,7 +74,6 @@ public:
 private:
   InstListType InstList;
   Function *Parent;
-  bool IsLandingPad;
 
   void setParent(Function *parent);
   friend class SymbolTableListTraits<BasicBlock, Function>;
@@ -139,11 +138,6 @@ public:
     return const_cast<BasicBlock*>(this)->getFirstNonPHIOrDbg();
   }
 
-  /// isLandingPad - True if this basic block is a landing pad for exception
-  /// handling.
-  bool isLandingPad() const { return IsLandingPad; }
-  void setIsLandingPad(bool Val = true) { IsLandingPad = Val; }
-
   /// removeFromParent - This method unlinks 'this' from the containing
   /// function, but does not delete it.
   ///