[Gradle, JS] Declare default configurations in js single plugin

Because in Kotlin DSL we want to declare configurations in methods instead of extensions of Strings
We need to create configurations explicitly in plugin

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsPlugin.kt

@@ -10,10 +10,12 @@ import org.gradle.api.Project
 import org.gradle.api.plugins.JavaBasePlugin
 import org.jetbrains.kotlin.gradle.dsl.KotlinJsProjectExtension
 import org.jetbrains.kotlin.gradle.dsl.kotlinExtension
+import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation.Companion.MAIN_COMPILATION_NAME
+import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation.Companion.TEST_COMPILATION_NAME
 import org.jetbrains.kotlin.gradle.plugin.configureDefaultVersionsResolutionStrategy
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsSingleTargetPreset
 import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrSingleTargetPreset
-import org.jetbrains.kotlin.gradle.utils.checkGradleCompatibility
+import org.jetbrains.kotlin.gradle.utils.*
 
 open class KotlinJsPlugin(
     private val kotlinPluginVersion: String
@@ -34,5 +36,30 @@ open class KotlinJsPlugin(
             irPreset = KotlinJsIrSingleTargetPreset(project, kotlinPluginVersion)
             legacyPreset = KotlinJsSingleTargetPreset(project, kotlinPluginVersion)
         }
+
+        // Explicitly create configurations for main and test
+        // It is because in single platform we want to declare dependencies with methods not with strings in Kotlin DSL
+        // implementation("foo") instead of "implementation"("foo")
+        val configurations = project.configurations
+        listOf(MAIN_COMPILATION_NAME, TEST_COMPILATION_NAME)
+            // in main compilation we don't need additional name
+            .map { it.removeSuffix(MAIN_COMPILATION_NAME) }
+            .forEach { baseCompilationName ->
+                listOf(
+                    COMPILE_ONLY,
+                    COMPILE,
+                    IMPLEMENTATION,
+                    API,
+                    RUNTIME_ONLY,
+                    RUNTIME
+                ).forEach { baseConfigurationName ->
+                    configurations.maybeCreate(
+                        lowerCamelCaseName(
+                            baseCompilationName,
+                            baseConfigurationName
+                        )
+                    )
+                }
+            }
     }
 }