Opt-in for Experimental/UseExperimental annotation usage in tests

libraries/stdlib/common/build.gradle

@@ -80,6 +80,7 @@ compileCoroutinesExperimentalKotlinCommon {
 compileTestKotlinCommon {
     kotlinOptions {
         freeCompilerArgs += [
+                "-Xuse-experimental=kotlin.Experimental",
                 "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
                 "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
         ]

libraries/stdlib/jdk7/build.gradle

@@ -94,6 +94,7 @@ compileTestKotlin {
     kotlinOptions.freeCompilerArgs = [
             "-Xallow-kotlin-package",
             "-Xmulti-platform",
+            "-Xuse-experimental=kotlin.Experimental",
             "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
             "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
     ]

libraries/stdlib/jdk8/build.gradle

@@ -88,6 +88,7 @@ compileTestKotlin {
     kotlinOptions.freeCompilerArgs = [
             "-Xallow-kotlin-package",
             "-Xmulti-platform",
+            "-Xuse-experimental=kotlin.Experimental",
             "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
             "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
     ]

libraries/stdlib/js-ir/build.gradle

@@ -135,6 +135,7 @@ compileTestKotlin2Js {
           "-Xir",
           "-Xir-produce-only=js",
           "-verbose",
+          "-Xuse-experimental=kotlin.Experimental",
           "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
           "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
         ]

libraries/stdlib/js-v1/build.gradle

@@ -193,6 +193,7 @@ compileTestKotlin2Js {
     kotlinOptions {
         moduleKind = "umd"
         freeCompilerArgs += [
+            "-Xuse-experimental=kotlin.Experimental",
             "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
             "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
         ]

libraries/stdlib/jvm/build.gradle

@@ -249,6 +249,7 @@ check.dependsOn(coroutinesExperimentalMigrationTest)
 compileTestKotlin {
     kotlinOptions {
         freeCompilerArgs += [
+                "-Xuse-experimental=kotlin.Experimental",
                 "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
                 "-Xuse-experimental=kotlin.ExperimentalStdlibApi"
         ]