Annotate new API with @SinceKotlin in kotlin-runtime except reflection and type aliases.

core/builtins/native/kotlin/Collections.kt

@@ -303,6 +303,7 @@ public interface Map<K, out V> {
      *
      * @since JDK 1.8
      */
+    @SinceKotlin("1.1")
     @PlatformDependent
     public fun getOrDefault(key: K, defaultValue: @UnsafeVariance V): V {
         // See default implementation in JDK sources
@@ -368,6 +369,7 @@ public interface MutableMap<K, V> : Map<K, V> {
      *
      * @return true if entry was removed
      */
+    @SinceKotlin("1.1")
     @PlatformDependent
     public fun remove(key: K, value: V): Boolean {
         // See default implementation in JDK sources

core/builtins/src/kotlin/Coroutines.kt

@@ -19,6 +19,7 @@ package kotlin.coroutines
 /**
  * Interface representing a continuation after a suspension point that returns value of type `P`
  */
+@SinceKotlin("1.1")
 public interface Continuation<in P> {
     /**
      * Resumes the execution of the corresponding coroutine passing `data` as the return value of the last suspension point
@@ -36,6 +37,7 @@ public interface Continuation<in P> {
 /**
  * Specifies that suspend extensions with a receiver based on corresponding controller class are allowed to be declared
  */
+@SinceKotlin("1.1")
 @Target(AnnotationTarget.CLASS)
 @Retention(AnnotationRetention.BINARY)
 public annotation class AllowSuspendExtensions

core/runtime.jvm/src/kotlin/jvm/internal/localVariableReferences.kt

@@ -22,6 +22,7 @@ private fun notSupportedError(): Nothing {
     throw kotlin.UnsupportedOperationException("Not supported for local property reference.")
 }
 
+@SinceKotlin("1.1")
 open class LocalVariableReference : PropertyReference0() {
     override fun getOwner(): KDeclarationContainer = notSupportedError()
 
@@ -29,6 +30,7 @@ open class LocalVariableReference : PropertyReference0() {
 
 }
 
+@SinceKotlin("1.1")
 open class MutableLocalVariableReference : MutablePropertyReference0() {
     override fun getOwner(): KDeclarationContainer = notSupportedError()