Introduce -opt-in stable compiler option instead of -Xopt-in

#KT-47099 Fixed

compiler/testData/cli/jvm/experimentalAndUseExperimentalWithSameAnnotation.args

@@ -1,6 +1,8 @@
 $TESTDATA_DIR$/experimentalAndUseExperimentalWithSameAnnotation.kt
 -d
 $TEMP_DIR$
--Xopt-in=kotlin.RequiresOptIn
+-opt-in
+kotlin.RequiresOptIn
+-opt-in
+org.test.ExperimentalAPI
 -Xexperimental=org.test.ExperimentalAPI
--Xopt-in=org.test.ExperimentalAPI

compiler/testData/cli/jvm/experimentalDeprecated.args

@@ -1,8 +1,11 @@
 $TESTDATA_DIR$/experimentalDeprecated.kt
 -d
 $TEMP_DIR$
--Xopt-in=kotlin.RequiresOptIn
+-opt-in
+kotlin.RequiresOptIn
 -Xexperimental=org.test.Error1
 -Xexperimental=org.test.Hidden1
--Xopt-in=org.test.Error2
--Xopt-in=org.test.Hidden2
+-opt-in
+org.test.Error2
+-opt-in
+org.test.Hidden2

compiler/testData/cli/jvm/experimentalDeprecatedWarning.args

@@ -2,6 +2,9 @@ $TESTDATA_DIR$/experimentalDeprecatedWarning.kt
 -d
 $TEMP_DIR$
 -Xopt-in=kotlin.RequiresOptIn
--Xopt-in=org.test.Warning1
+-opt-in
+kotlin.RequiresOptIn
+-opt-in
+org.test.Warning1
 -Xexperimental=org.test.Warning2
 -Xuse-experimental=org.test.OneMore

compiler/testData/cli/jvm/experimentalDeprecatedWarning.out

@@ -1,5 +1,6 @@
 warning: '-Xexperimental' is deprecated and will be removed in a future release
-warning: '-Xuse-experimental' is deprecated and will be removed in a future release
+warning: '-Xuse-experimental' is deprecated and will be removed in a future release, please use -opt-in instead
+warning: '-Xopt-in' is deprecated and will be removed in a future release, please use -opt-in instead
 warning: opt-in requirement marker org.test.Warning2 is deprecated. Warning2
 warning: opt-in requirement marker org.test.Warning1 is deprecated. Warning1
 OK

compiler/testData/cli/jvm/experimentalIsNotAnnotation.args

@@ -2,4 +2,5 @@ $TESTDATA_DIR$/experimentalIsNotAnnotation.kt
 -d
 $TEMP_DIR$
 -Xexperimental=org.test.NotAnAnnotation1
--Xopt-in=org.test.NotAnAnnotation2
+-opt-in
+org.test.NotAnAnnotation2

compiler/testData/cli/jvm/experimentalIsNotMarker.args

@@ -2,4 +2,5 @@ $TESTDATA_DIR$/experimentalIsNotMarker.kt
 -d
 $TEMP_DIR$
 -Xexperimental=org.test.NotAMarker1
--Xopt-in=org.test.NotAMarker2
+-opt-in
+org.test.NotAMarker2

compiler/testData/cli/jvm/experimentalNested.args

@@ -1,5 +1,6 @@
 $TESTDATA_DIR$/experimentalNested.kt
 -d
 $TEMP_DIR$
--Xopt-in=kotlin.RequiresOptIn
+-opt-in
+kotlin.RequiresOptIn
 -Xexperimental=org.test.Outer.Nested

compiler/testData/cli/jvm/experimentalUnresolved.args

@@ -1,6 +1,9 @@
 $TESTDATA_DIR$/experimentalUnresolved.kt
 -d
 $TEMP_DIR$
--Xopt-in=org.test.Unresolved1
+-opt-in
+org.test.Unresolved1
+-opt-in
+org.test.Unresolved3
 -Xexperimental=org.test.Unresolved2
--Xopt-in=org.test.Unresolved3
+

compiler/testData/cli/jvm/help.out

@@ -19,6 +19,7 @@ where possible options include:
   -help (-h)                 Print a synopsis of standard options
   -kotlin-home <path>        Path to the home directory of Kotlin compiler used for discovery of runtime libraries
   -language-version <version> Provide source compatibility with the specified version of Kotlin
+  -opt-in <fq.name>          Enable usages of API that requires opt-in with an opt-in requirement marker with the given fully qualified name
   -P plugin:<pluginId>:<optionName>=<value>
                              Pass an option to a plugin
   -progressive               Enable progressive compiler mode.

compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutExplicitImportCommandLine.args

@@ -3,4 +3,5 @@ $TESTDATA_DIR$/useDeclarationThatWasExperimentalWithoutMarker.kt
 $TEMP_DIR$
 -language-version
 1.3
--Xopt-in=kotlin.ExperimentalStdlibApi
+-opt-in
+kotlin.ExperimentalStdlibApi