Implemented Kover API version 2

Resolves #19
Resolves #128
Resolves #168

Also:
- Kotlin version upgraded to 1.7.10
- Agent version upgraded to 1.0.675
- instrumentation config added to the test framework
- added test on instrumentation config

Co-authored-by: Vsevolod Tolstopyatov <qwwdfsad@gmail.com>

build.gradle.kts

@@ -1,5 +1,7 @@
+import org.jetbrains.kotlin.gradle.plugin.*
+
 plugins {
-    kotlin("jvm") version "1.6.10"
+    kotlin("jvm") version "1.7.10"
 
     `java-gradle-plugin`
     `maven-publish`
@@ -19,21 +21,26 @@ sourceSets {
     }
 }
 
+// adding the ability to use internal classes inside functional tests
+kotlin.target.compilations.run {
+    getByName("functionalTest").associateWith(getByName(KotlinCompilation.MAIN_COMPILATION_NAME))
+}
+
 dependencies {
     implementation(gradleApi())
     // exclude transitive dependency on stdlib, the Gradle version should be used
     compileOnly(kotlin("stdlib"))
 
-    compileOnly("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10")
+    compileOnly("org.jetbrains.kotlin:kotlin-gradle-plugin:${property("kotlin.version")}")
     compileOnly("com.android.tools.build:gradle:4.2.2")
 
     testImplementation(kotlin("test"))
 
     "functionalTestImplementation"(gradleTestKit())
     // dependencies only for plugin's classpath to work with Kotlin Multi-Platform and Android plugins
-    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10")
-    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-compiler-embeddable:1.6.10")
-    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-compiler-runner:1.6.10")
+    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-gradle-plugin:${property("kotlin.version")}")
+    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-compiler-embeddable:${property("kotlin.version")}")
+    "functionalTestCompileOnly"("org.jetbrains.kotlin:kotlin-compiler-runner:${property("kotlin.version")}")
 }
 
 java {
@@ -73,7 +80,7 @@ tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach
         // Kover works with the stdlib of at least version `1.4.x`
         languageVersion = "1.4"
         apiVersion = "1.4"
-        // Kotlin compiler 1.6 issues a warning if `languageVersion` or `apiVersion` 1.4 is used - suppress it
+        // Kotlin compiler 1.7 issues a warning if `languageVersion` or `apiVersion` 1.4 is used - suppress it
         freeCompilerArgs = freeCompilerArgs + "-Xsuppress-version-warnings"
     }
 }

buildSrc/src/main/kotlin/PublicationMavenCentral.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ * Copyright 2017-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
 import org.gradle.api.*