Fix CalibratedQuantizedType's print function to match parser

mlir/lib/Dialect/Quant/IR/TypeParser.cpp

llvm::interleave(
       ",");
   out << "}>";
 }
 
 /// Helper that prints a CalibratedQuantizedType.
 static void printCalibratedQuantizedType(CalibratedQuantizedType type,
                                          DialectAsmPrinter &out) {
   out << "calibrated<" << type.getExpressedType();
-  out << "<" << type.getMin() << ", " << type.getMax() << ">";
+  out << "<" << type.getMin() << ":" << type.getMax() << ">";
   out << ">";
 }
 
 /// Print a type registered to this dialect.
 void QuantizationDialect::printType(Type type, DialectAsmPrinter &os) const {
   if (auto anyType = type.dyn_cast<AnyQuantizedType>())
     printAnyQuantizedType(anyType, os);
   else if (auto uniformType = type.dyn_cast<UniformQuantizedType>())
     printUniformQuantizedType(uniformType, os);
   else if (auto perAxisType = type.dyn_cast<UniformQuantizedPerAxisType>())
     printUniformQuantizedPerAxisType(perAxisType, os);
   else if (auto calibratedType = type.dyn_cast<CalibratedQuantizedType>())
     printCalibratedQuantizedType(calibratedType, os);
   else
     llvm_unreachable("Unhandled quantized type");
 }

mlir/test/Dialect/Quant/parse-calibrated.mlir

 // RUN: mlir-opt -allow-unregistered-dialect %s -split-input-file | FileCheck %s
 
 // -----
 // CHECK-LABEL: parseCalibrated
-// CHECK: !quant.calibrated<f32<-0.998, 1.232100e+00>
+// CHECK: !quant.calibrated<f32<-0.998:1.232100e+00>
 !qalias = type !quant.calibrated<f32<-0.998:1.2321>>
 func @parseCalibrated() -> !qalias {
   %0 = "foo"() : () -> !qalias
   return %0 : !qalias
 }