Refactor gradle importing tests. Add possibility to test various

versions of gradle kotlin plugin

idea/testData/gradle/newMultiplatformImport/androidDependencyOnMPP/build.gradle

@@ -7,7 +7,9 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.2.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0-rc-146"
+        apply from: "include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.0-rc-146')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
     }
 }
 

idea/testData/gradle/newMultiplatformImport/dependencyOnRoot/build.gradle

@@ -4,7 +4,9 @@ buildscript {
 		jcenter()
 	}
 	dependencies {
-		classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.10'
+		apply from: "include.gradle"
+		def kotlinVersion = gradleKotlinPluginVersion('1.3.10')
+		classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
 	}
 }
 

idea/testData/gradle/newMultiplatformImport/fileCollectionDependency/build.gradle

@@ -5,7 +5,9 @@ buildscript {
         maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0-rc-146"
+        apply from: "include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.0-rc-146')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
     }
 }
 

idea/testData/gradle/newMultiplatformImport/nestedDependencies/build.gradle

@@ -5,7 +5,9 @@ buildscript {
         maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0-rc-146"
+        apply from: "include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.0-rc-146')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
     }
 }
 

idea/testData/gradle/newMultiplatformImport/projectDependency/build.gradle

@@ -5,7 +5,9 @@ buildscript {
         maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0-rc-146"
+        apply from: "include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.0-rc-146')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
     }
 }
 

idea/testData/gradle/newMultiplatformImport/unresolvedDependency/build.gradle

@@ -5,7 +5,9 @@ buildscript {
         maven { url 'https://dl.bintray.com/kotlin/kotlin-dev' }
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0-rc-146"
+        apply from: "include.gradle"
+        def kotlinVersion = gradleKotlinPluginVersion('1.3.0-rc-146')
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
     }
 }