[TableGen] Fix typo in CompressInstEmitter.

We should use ImmVal field instead of Imm which is from the Kind enum.

This caused us to check a value of 1 instead of of the what was
parsed.

Author: topperc

llvm/utils/TableGen/CompressInstEmitter.cpp

@@ -827,7 +827,7 @@ void CompressInstEmitter::emitCompressInstEmitter(raw_ostream &OS,
                                            DestRec, "MCOperandPredicate");
             CondStream.indent(8)
                 << ValidatorName << "("
-                << "MCOperand::createImm(" << DestOperandMap[OpNo].Imm
+                << "MCOperand::createImm(" << DestOperandMap[OpNo].ImmVal
                 << "), STI, " << Entry << ") &&\n";
           } else {
             unsigned Entry =