Subzero. ARM32. Introduces the ShAmtImm Operand.

Creates a special OperandARM32 for representing imm5 used when
performing a shift operation.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4076
R=kschimpf@google.com

Review URL: https://codereview.chromium.org/1449263003 .
4 files changed