CodeGenInstruction into its own helper class.  No functionality change.

llvm-svn: 117893

CodeGenInstruction::FlattenAsmStringVariants method.  Use it
to simplify the code in AsmWriterInst, which now no longer 
needs to worry about variants.

llvm-svn: 117886

member of AsmPrinter.  Instead, pass it in explicitly.

llvm-svn: 100306

operand into the CodeGenInstruction's list of operands,
which is useful for EDEmitter.  (Still working on PR6219)

llvm-svn: 95759

implementation.  Also changed the constructor
so that it does not require a Record, making it
usable by the EDEmitter.

llvm-svn: 95715

out of the AsmWriterEmitter.  This patch does the physical
code movement, but leaves the implementation unchanged. I'll
make any changes necessary to generalize the code in a
separate patch.

llvm-svn: 95697