[Gradle, JS] Fix grammar in methods for JS import

libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinTarget.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -28,8 +28,8 @@ interface KotlinTargetComponent : SoftwareComponent {
 interface KotlinTarget : Named, HasAttributes {
     val targetName: String
     val disambiguationClassifier: String? get() = targetName
-    val useDisambiguitionClassifierAsSourcesetNamePreffix: Boolean
-    val overrideDisambiguitionClassifierOnIdeImport: String?
+    val useDisambiguationClassifierAsSourceSetNamePrefix: Boolean
+    val overrideDisambiguationClassifierOnIdeImport: String?
 
     val platformType: KotlinPlatformType