Move gradle test settings to separate files

KT-8487

libraries/tools/kotlin-gradle-plugin/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseIncrementalGradleIT.kt

@@ -25,45 +25,7 @@ abstract class BaseIncrementalGradleIT : BaseGradleIT() {
                     .filter { it.isFile && (it.name.endsWith(".kt") || it.name.endsWith(".java")) }
                     .forEach { Files.copy(it, File(srcDir, it.name)) }
             copyDirRecursively(File(resourcesRootFile, "GradleWrapper-$wrapperVersion"), projectDir)
-            File(projectDir, "build.gradle").writeText("""
-buildscript {
-  repositories {
-    maven {
-        url 'file://' + pathToKotlinPlugin
-    }
-  }
-  dependencies {
-    classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:0.1-SNAPSHOT'
-  }
-}
-
-apply plugin: "kotlin"
-
-sourceSets {
-  main {
-     kotlin {
-        srcDir 'src'
-     }
-     java {
-        srcDir 'src'
-     }
-  }
-}
-
-compileKotlin {
-  experimentalIncremental = true
-}
-
-repositories {
-  maven {
-     url 'file://' + pathToKotlinPlugin
-  }
-}
-
-dependencies {
-    compile  'org.jetbrains.kotlin:kotlin-stdlib:0.1-SNAPSHOT'
-}
-            """)
+            copyDirRecursively(File(resourcesRootFile, "incrementalGradleProject"), projectDir)
         }
     }
 

libraries/tools/kotlin-gradle-plugin/src/test/resources/incrementalGradleProject/build.gradle

@@ -0,0 +1,37 @@
+buildscript {
+    repositories {
+        maven {
+            url 'file://' + pathToKotlinPlugin
+        }
+    }
+    dependencies {
+        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:0.1-SNAPSHOT'
+    }
+}
+
+apply plugin: "kotlin"
+
+sourceSets {
+    main {
+        kotlin {
+            srcDir 'src'
+        }
+        java {
+            srcDir 'src'
+        }
+    }
+}
+
+compileKotlin {
+    experimentalIncremental = true
+}
+
+repositories {
+    maven {
+        url 'file://' + pathToKotlinPlugin
+    }
+}
+
+dependencies {
+    compile  'org.jetbrains.kotlin:kotlin-stdlib:0.1-SNAPSHOT'
+}

libraries/tools/kotlin-gradle-plugin/src/test/resources/incrementalGradleProject/gradle.properties

@@ -0,0 +1 @@
+#org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m