Adapt the code to the new Kotlin version

Author: dkhalanskyjb

core/common/src/format/DateTimeComponents.kt

@@ -484,7 +484,6 @@ internal class DateTimeComponentsContents internal constructor(
         date.hashCode() xor time.hashCode() xor offset.hashCode() xor (timeZoneId?.hashCode() ?: 0)
 }
 
-@SharedImmutable
 internal val timeZoneField = GenericFieldSpec(PropertyAccessor(DateTimeComponentsContents::timeZoneId))
 
 internal class TimeZoneIdDirective(private val knownZones: Set<String>) :
@@ -538,5 +537,4 @@ private class TwoDigitNumber(private val reference: KMutableProperty0<Int?>) {
     }
 }
 
-@SharedImmutable
 private val emptyDateTimeComponentsContents = DateTimeComponentsContents()

core/common/src/format/DateTimeFormat.kt

@@ -109,11 +109,10 @@ internal sealed class AbstractDateTimeFormat<T, U : Copyable<U>> : DateTimeForma
         actualFormat.formatter.format(intermediateFromValue(value), this)
     }
 
-    private val parser: Parser<U> by lazy { Parser(actualFormat.parser) }
-
     override fun parse(input: CharSequence): T {
         val matched = try {
-            parser.match(input, emptyIntermediate)
+            // without the fully qualified name, the compilation fails for some reason
+            kotlinx.datetime.internal.format.parser.Parser(actualFormat.parser).match(input, emptyIntermediate)
         } catch (e: ParseException) {
             throw DateTimeFormatException("Failed to parse value from '$input'", e)
         }
@@ -125,11 +124,11 @@ internal sealed class AbstractDateTimeFormat<T, U : Copyable<U>> : DateTimeForma
     }
 
     override fun parseOrNull(input: CharSequence): T? =
-        parser.matchOrNull(input, emptyIntermediate)?.let { valueFromIntermediateOrNull(it) }
+        // without the fully qualified name, the compilation fails for some reason
+        kotlinx.datetime.internal.format.parser.Parser(actualFormat.parser).matchOrNull(input, emptyIntermediate)?.let { valueFromIntermediateOrNull(it) }
 
 }
 
-@SharedImmutable
 private val allFormatConstants: List<Pair<String, StringFormat<*>>> by lazy {
     fun unwrap(format: DateTimeFormat<*>): StringFormat<*> = (format as AbstractDateTimeFormat<*, *>).actualFormat
     // the formats are ordered vaguely by decreasing length, as the topmost among suitable ones is chosen.

core/common/src/format/LocalDateFormat.kt

@@ -314,14 +314,11 @@ internal interface AbstractWithDateBuilder: DateTimeFormatBuilder.WithDate {
 }
 
 // these are constants so that the formats are not recreated every time they are used
-@SharedImmutable
 internal val ISO_DATE by lazy {
     LocalDateFormat.build { year(); char('-'); monthNumber(); char('-'); dayOfMonth() }
 }
-@SharedImmutable
 internal val ISO_DATE_BASIC by lazy {
     LocalDateFormat.build { year(); monthNumber(); dayOfMonth() }
 }
 
-@SharedImmutable
 private val emptyIncompleteLocalDate = IncompleteLocalDate()

core/common/src/format/LocalDateTimeFormat.kt

@@ -75,7 +75,6 @@ internal interface AbstractWithDateTimeBuilder:
 }
 
 // these are constants so that the formats are not recreated every time they are used
-@SharedImmutable
 internal val ISO_DATETIME by lazy {
     LocalDateTimeFormat.build {
         date(ISO_DATE)
@@ -84,7 +83,6 @@ internal val ISO_DATETIME by lazy {
     }
 }
 
-@SharedImmutable
 internal val ISO_DATETIME_OPTIONAL_SECONDS by lazy {
     LocalDateTimeFormat.build {
         date(ISO_DATE)
@@ -93,5 +91,4 @@ internal val ISO_DATETIME_OPTIONAL_SECONDS by lazy {
     }
 }
 
-@SharedImmutable
 private val emptyIncompleteLocalDateTime = IncompleteLocalDateTime()

core/common/src/format/LocalTimeFormat.kt

@@ -254,7 +254,6 @@ internal class LocalTimeFormat(override val actualFormat: StringFormat<TimeField
 }
 
 // these are constants so that the formats are not recreated every time they are used
-@SharedImmutable
 internal val ISO_TIME by lazy {
     LocalTimeFormat.build {
         hour()
@@ -273,7 +272,6 @@ internal val ISO_TIME by lazy {
     }
 }
 
-@SharedImmutable
 internal val ISO_TIME_OPTIONAL_SECONDS by lazy {
     LocalTimeFormat.build {
         hour()
@@ -290,5 +288,4 @@ internal val ISO_TIME_OPTIONAL_SECONDS by lazy {
     }
 }
 
-@SharedImmutable
 private val emptyIncompleteLocalTime = IncompleteLocalTime()

core/common/src/format/UtcOffsetFormat.kt

@@ -229,7 +229,6 @@ private class UtcOffsetSecondOfMinuteDirective(private val padding: Padding) :
 }
 
 // these are constants so that the formats are not recreated every time they are used
-@SharedImmutable
 internal val ISO_OFFSET by lazy {
     UtcOffsetFormat.build {
         alternativeParsing({ chars("z") }) {
@@ -245,7 +244,6 @@ internal val ISO_OFFSET by lazy {
         }
     }
 }
-@SharedImmutable
 internal val ISO_OFFSET_BASIC by lazy {
     UtcOffsetFormat.build {
         alternativeParsing({ chars("z") }) {
@@ -262,13 +260,11 @@ internal val ISO_OFFSET_BASIC by lazy {
     }
 }
 
-@SharedImmutable
 internal val FOUR_DIGIT_OFFSET by lazy {
     UtcOffsetFormat.build {
         offsetHours()
         offsetMinutesOfHour()
     }
 }
 
-@SharedImmutable
 private val emptyIncompleteUtcOffset = IncompleteUtcOffset()

core/common/src/format/migration/Unicode.kt

@@ -599,7 +599,6 @@ private fun unicodeDirective(char: Char, formatLength: Int): UnicodeFormat = whe
     else -> UnknownUnicodeDirective(char, formatLength)
 }
 
-@SharedImmutable
 private val nonPlainCharacters = ('a'..'z') + ('A'..'Z') + listOf('[', ']', '\'')
 
 private fun unsupportedDirective(fieldName: String, recommendation: String? = null): Nothing =

core/native/src/UtcOffset.kt

@@ -10,7 +10,6 @@ import kotlinx.datetime.format.*
 import kotlinx.datetime.serializers.UtcOffsetSerializer
 import kotlinx.serialization.Serializable
 import kotlin.math.abs
-import kotlin.native.concurrent.SharedImmutable
 import kotlin.native.concurrent.ThreadLocal
 
 @Serializable(with = UtcOffsetSerializer::class)
@@ -116,7 +115,6 @@ public actual fun UtcOffset(hours: Int? = null, minutes: Int? = null, seconds: I
         }
     }
 
-@SharedImmutable
 private val lenientFormat = UtcOffsetFormat.build {
     alternativeParsing(
         {