Fix dcg compiler plugin to match new APIs

Summary: Changes to the compile testing framework are now causing dcg tests to fail. We also need to add the experimental compiler api annotation, to stop the compiler from complaining that we're using experimental methods.

Differential Revision: D54039510

fbshipit-source-id: ab8dc5a263b78750f248f32f540e12548d2e3fef

compiler/cli/src/test/kotlin/com/facebook/kotlin/compilerplugins/dataclassgenerate/DcgCompilerIdentityTest.kt

@@ -12,6 +12,7 @@ import org.assertj.core.api.Assertions.assertThat
 import org.junit.BeforeClass
 import org.junit.Test
 
+@OptIn(org.jetbrains.kotlin.compiler.plugin.ExperimentalCompilerApi::class)
 class DcgCompilerIdentityTest : DcgTestCase() {
 
   companion object {

compiler/cli/src/test/kotlin/com/facebook/kotlin/compilerplugins/dataclassgenerate/DcgTestCase.kt

@@ -9,7 +9,7 @@ package com.facebook.kotlin.compilerplugins.dataclassgenerate
 
 import com.facebook.kotlin.compilerplugins.dataclassgenerate.configuration.CompilerConfigurationProperties
 import com.facebook.kotlin.compilerplugins.dataclassgenerate.configuration.PluginMode
-import com.tschuchort.compiletesting.CompilationResult
+import com.tschuchort.compiletesting.JvmCompilationResult
 import com.tschuchort.compiletesting.KotlinCompilation
 import com.tschuchort.compiletesting.PluginOption
 import com.tschuchort.compiletesting.SourceFile
@@ -20,19 +20,14 @@ open class DcgTestCase {
     fun compileWithK2(
         vararg srcs: SourceFile,
         dcgConfig: DcgTestConfiguration = DEFAULT_DCG_CONFIG,
-    ): CompilationResult {
-      return makeCompilationContext(srcs, dcgConfig)
-          .apply {
-            useK2 = true
-            supportsK2 = true
-          }
-          .compile()
+    ): JvmCompilationResult {
+      return makeCompilationContext(srcs, dcgConfig).apply { supportsK2 = true }.compile()
     }
 
     fun compileWithK1(
         vararg srcs: SourceFile,
         dcgConfig: DcgTestConfiguration = DEFAULT_DCG_CONFIG,
-    ): CompilationResult {
+    ): JvmCompilationResult {
       return makeCompilationContext(srcs, dcgConfig).compile()
     }