Import for buildSequence in generated code for sequences

js/js.libraries/src/core/generated/_SequencesJs.kt

@@ -10,6 +10,7 @@ package kotlin.sequences
 
 import kotlin.js.*
 import kotlin.comparisons.*
+import kotlin.coroutines.experimental.*
 
 /**
  * Returns `true` if [element] is found in the sequence.

libraries/stdlib/src/generated/_Sequences.kt

@@ -10,6 +10,7 @@ package kotlin.sequences
 //
 
 import kotlin.comparisons.*
+import kotlin.coroutines.experimental.*
 
 /**
  * Returns `true` if [element] is found in the sequence.

libraries/tools/kotlin-stdlib-gen/src/generators/GenerateStandardLib.kt

@@ -106,7 +106,13 @@ private fun List<ConcreteFunction>.writeTo(file: File, sourceFile: SourceFile, p
                 writer.appendln("import withType")
             }
         }
-        writer.append("import kotlin.comparisons.*\n\n")
+        writer.appendln("import kotlin.comparisons.*")
+
+        if (platform != Platform.Common && sourceFile == SourceFile.Sequences) {
+            writer.appendln("import kotlin.coroutines.experimental.*")
+        }
+
+        writer.appendln()
 
         for (f in this) {
             f.textBuilder(writer)