Refactoring: use language injection in ResolveElementCache.kt

idea/tests/org/jetbrains/kotlin/idea/ResolveElementCacheTest.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.idea
 
 import com.intellij.psi.PsiDocumentManager
+import org.intellij.lang.annotations.Language
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptor
 import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightFixtureTestCase
@@ -31,6 +32,7 @@ import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 class ResolveElementCacheTest : KotlinLightCodeInsightFixtureTestCase() {
     override fun getProjectDescriptor() = KotlinLightProjectDescriptor.INSTANCE
 
+    //language=kotlin
     private val FILE_TEXT =
 """
 class C(param1: String = "", param2: Int = 0) {
@@ -269,10 +271,11 @@ class C(param1: String = "", param2: Int = 0) {
     }
 
     fun testAnnotationEntry() {
-        val file = myFixture.configureByText("Test.kt", """
-        annotation class A
-        @A class B {}
-        """) as KtFile
+        val file = configureWithKotlin(
+                """
+                annotation class A
+                @A class B {}
+                """)
 
         val klass = file.declarations[1] as KtClass
         val annotationEntry = klass.annotationEntries.single()
@@ -282,10 +285,11 @@ class C(param1: String = "", param2: Int = 0) {
     }
 
     fun testFileAnnotationList() {
-        val file = myFixture.configureByText("Test.kt", """
-        @file:Suppress("Some")
-        @file:JvmName("Hi")
-        """) as KtFile
+        val file = configureWithKotlin(
+                """
+                @file:Suppress("Some")
+                @file:JvmName("Hi")
+                """)
 
         val fileAnnotationList = file.fileAnnotationList!!
         val context = fileAnnotationList.analyze(BodyResolveMode.PARTIAL)
@@ -304,9 +308,10 @@ class C(param1: String = "", param2: Int = 0) {
     }
 
     fun testNamedParametersInFunctionType() {
-        val file = myFixture.configureByText("Test.kt", """
-        fun <K, V> intercept(block: (key: K, next: (K) -> V, K) -> V) {}
-        """) as KtFile
+        val file = configureWithKotlin(
+                """
+                fun <K, V> intercept(block: (key: K, next: (K) -> V, K) -> V) {}
+                """)
 
         val function = file.declarations[0] as KtNamedFunction
         val functionType = function.valueParameters.first().typeReference!!.typeElement as KtFunctionType
@@ -317,4 +322,8 @@ class C(param1: String = "", param2: Int = 0) {
                         descriptorsForParameters.map { it.name.asString() }
         )
     }
+
+    private fun configureWithKotlin(@Language("kotlin") text: String): KtFile {
+        return myFixture.configureByText("Test.kt", text.trimIndent()) as KtFile
+    }
 }