Add a bunch of utilities and an enum (ARM_ShifterType) for shift and rotate operations pertaining to:
Add a bunch of utilities and an enum (ARM_ShifterType) for shift and rotate operations pertaining to:

o A2.2.1 Pseudocode details of shift and rotate operations
o A8.4.3 Pseudocode details of instruction-specified shifts and rotates


git-svn-id: b33bab8abb5b18c12ee100cd7761ab452d00b2b0@125575 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb