Setup project for docs build with new Dokka

- Update Dokka to 1.6.20-M1
- Update Dokka to 1.6.20
- Update Dokka to 1.7.0-dev
- Update Dokka to 1.7.20-dev-187

Co-authored-by: ilya.gorbunov@jetbrains.com

libraries/tools/kotlin-stdlib-docs/plugins/dokka-stdlib-configuration-plugin/build.gradle

@@ -0,0 +1,25 @@
+plugins {
+    id 'org.jetbrains.kotlin.jvm' version '1.6.10'
+}
+description "Dokka Plugin to configure Dokka for stdlib"
+
+repositories {
+    mavenCentral()
+    maven {
+        url 'https://maven.pkg.jetbrains.space/kotlin/p/dokka/dev'
+    }
+    mavenLocal()
+}
+
+final String dokka_version = findProperty("dokka_version")
+
+dependencies {
+    implementation "org.jetbrains.dokka:dokka-base:$dokka_version"
+    compileOnly "org.jetbrains.dokka:dokka-core:$dokka_version"
+    compileOnly "org.jetbrains.dokka:dokka-analysis:$dokka_version"
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile) {
+    kotlinOptions.jvmTarget = "1.8"
+}
+

libraries/tools/kotlin-stdlib-docs/plugins/dokka-stdlib-configuration-plugin/src/main/kotlin/org/jetbrains/dokka/kotlinlang/StdLibConfigurationPlugin.kt

@@ -0,0 +1,21 @@
+package org.jetbrains.dokka.kotlinlang
+
+import org.jetbrains.dokka.base.DokkaBase
+import org.jetbrains.dokka.plugability.DokkaPlugin
+import org.jetbrains.dokka.analysis.DokkaAnalysisConfiguration
+import org.jetbrains.dokka.analysis.KotlinAnalysis
+
+class StdLibConfigurationPlugin : DokkaPlugin() {
+    private val dokkaBase by lazy { plugin<DokkaBase>() }
+
+    @Suppress("unused")
+    val stdLibKotlinAnalysis by extending {
+        dokkaBase.kotlinAnalysis providing { ctx ->
+            KotlinAnalysis(
+                sourceSets = ctx.configuration.sourceSets,
+                logger = ctx.logger,
+                analysisConfiguration = DokkaAnalysisConfiguration(ignoreCommonBuiltIns = true)
+            )
+        } override dokkaBase.defaultKotlinAnalysis
+    }
+}

libraries/tools/kotlin-stdlib-docs/plugins/dokka-stdlib-configuration-plugin/src/main/resources/META-INF/services/org.jetbrains.dokka.plugability.DokkaPlugin

@@ -0,0 +1 @@
+org.jetbrains.dokka.kotlinlang.StdLibConfigurationPlugin