Add first test for new multiplatform highlighting #KT-27494 Fixed

idea/testData/gradle/newMultiplatformHighlighting/first/build.gradle

@@ -0,0 +1,30 @@
+plugins {
+    id 'kotlin-multiplatform' version '1.3.0'
+}
+repositories {
+    mavenCentral()
+    jcenter()
+}
+kotlin {
+    targets {
+        fromPreset(presets.jvm, 'jvm')
+        fromPreset(presets.js, 'js')
+    }
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib-common'
+            }
+        }
+        jvmMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
+            }
+        }
+        jsMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib-js'
+            }
+        }
+    }
+}

idea/testData/gradle/newMultiplatformHighlighting/first/settings.gradle

@@ -0,0 +1,18 @@
+pluginManagement {
+    resolutionStrategy {
+        eachPlugin {
+            if (requested.id.id == "kotlin-multiplatform") {
+                useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:${requested.version}")
+            }
+        }
+    }
+
+    repositories {
+        mavenCentral()
+
+        maven { url 'https://plugins.gradle.org/m2/' }
+
+        jcenter()
+    }
+}
+rootProject.name = 'first'

idea/testData/gradle/newMultiplatformHighlighting/first/src/commonMain/kotlin/My.kt

@@ -0,0 +1,3 @@
+expect class <error descr="[NO_ACTUAL_FOR_EXPECT] Expected class 'My' has no actual declaration in module first_jsMain for JS">My</error> {
+    fun foo()
+}

idea/testData/gradle/newMultiplatformHighlighting/first/src/jsMain/kotlin/foo.kt

@@ -0,0 +1 @@
+fun foo() = "Java Script"

idea/testData/gradle/newMultiplatformHighlighting/first/src/jvmMain/kotlin/My.kt

@@ -0,0 +1,5 @@
+actual class My {
+    actual fun foo() {}
+
+    actual fun <error descr="[ACTUAL_WITHOUT_EXPECT] Actual function 'bar' has no corresponding expected declaration">bar</error>() {}
+}