CodeGen: add new "intrinsic" MachineOperand kind.

This will be used during GlobalISel, where we need a more robust and readable
way to write tests than a simple immediate ID.

llvm-svn: 277209
diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.h b/llvm/lib/CodeGen/MIRParser/MILexer.h
index 6f90612..6a09887 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.h
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.h
@@ -68,6 +68,7 @@
     kw_cfi_def_cfa_offset,
     kw_cfi_def_cfa,
     kw_blockaddress,
+    kw_intrinsic,
     kw_target_index,
     kw_half,
     kw_float,