[ms-inline asm] Create a helper function, CreateMemForInlineAsm, that creates an X86Operand, but also performs a Sema lookup and adds the sizing directive when appropriate.  Use this when parsing a bracketed statement.  This is necessary to get the instruction matching correct as well.  Test case coming on clang side. rdar://13455408
[ms-inline asm] Create a helper function, CreateMemForInlineAsm, that creates
an X86Operand, but also performs a Sema lookup and adds the sizing directive
when appropriate.  Use this when parsing a bracketed statement.  This is
necessary to get the instruction matching correct as well.  Test case coming
on clang side.
rdar://13455408

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@177439 91177308-0d34-0410-b5e6-96231b3b80d8

chubbymaggie/asap,dslab-epfl/asap,apple/swift-llvm,apple/swift-llvm,dslab-epfl/asap,apple/swift-llvm,llvm-mirror/llvm,chubbymaggie/asap,GPUOpen-Drivers/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,dslab-epfl/asap,apple/swift-llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,chubbymaggie/asap,apple/swift-llvm,chubbymaggie/asap,chubbymaggie/asap,llvm-mirror/llvm,dslab-epfl/asap,chubbymaggie/asap,GPUOpen-Drivers/llvm,dslab-epfl/asap,llvm-mirror/llvm,llvm-mirror/llvm,apple/swift-llvm,dslab-epfl/asap,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,dslab-epfl/asap