Auto-upgrade free instructions to calls to the builtin free function.

Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.

llvm-svn: 84987

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

@@ -2073,7 +2073,8 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
       if (getValueTypePair(Record, OpNum, NextValueNo, Op) ||
           OpNum != Record.size())
         return Error("Invalid FREE record");
-      I = new FreeInst(Op);
+      if (!CurBB) return Error("Invalid free instruction with no BB");
+      I = CallInst::CreateFree(Op, CurBB);
       InstructionList.push_back(I);
       break;
     }