AllocateFixed     792 src/lithium-allocator.cc         AllocateFixed(temp, gap_index - 1, false);
AllocateFixed     805 src/lithium-allocator.cc       AllocateFixed(first_output, gap_index, is_tagged);
AllocateFixed     836 src/lithium-allocator.cc         AllocateFixed(cur_input, gap_index + 1, is_tagged);
AllocateFixed     508 src/lithium-allocator.h   LOperand* AllocateFixed(LUnallocated* operand, int pos, bool is_tagged);