fix the !eq operator in tblgen to return a bit instead of an int.

fix the !eq operator in tblgen to return a bit instead of an int.

Use this to make the X86 and ARM targets set isCodeGenOnly=1
automatically for their instructions that have Format=Pseudo,
resolving a hack in tblgen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117862 91177308-0d34-0410-b5e6-96231b3b80d8