[analysis api, tests] generate analysis api in a separate tests-gen folder

analysis/analysis-api-fe10/build.gradle.kts

@@ -30,7 +30,10 @@ dependencies {
 
 sourceSets {
     "main" { projectDefault() }
-    "test" { projectDefault() }
+    "test" {
+        projectDefault()
+        generatedTestDir()
+    }
 }
 
 tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {

analysis/analysis-api-fir/build.gradle.kts

@@ -46,7 +46,10 @@ dependencies {
 
 sourceSets {
     "main" { projectDefault() }
-    "test" { projectDefault() }
+    "test" {
+        projectDefault()
+        generatedTestDir()
+    }
 }
 
 projectTest(jUnitMode = JUnitMode.JUnit5) {

analysis/analysis-api-standalone/build.gradle.kts

@@ -33,7 +33,10 @@ kotlin {
 
 sourceSets {
     "main" { projectDefault() }
-    "test" { projectDefault() }
+    "test" {
+        projectDefault()
+        generatedTestDir()
+    }
 }
 
 projectTest(jUnitMode = JUnitMode.JUnit5) {

buildSrc/src/main/kotlin/sourceSets.kt

@@ -2,6 +2,8 @@ import org.gradle.api.Project
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.api.tasks.SourceSet
 import org.gradle.api.tasks.SourceSetContainer
+import org.gradle.kotlin.dsl.apply
+import org.jetbrains.kotlin.ideaExt.idea
 
 inline fun Project.sourceSets(crossinline body: SourceSetsBuilder.() -> Unit) = SourceSetsBuilder(this).body()
 
@@ -35,6 +37,20 @@ val SourceSet.projectDefault: Project.() -> Unit
         }
     }
 
+val SourceSet.generatedTestDir: Project.() -> Unit
+    get() = {
+        val generationRoot = projectDir.resolve("tests-gen")
+        java.srcDir(generationRoot.name)
+
+        if (kotlinBuildProperties.isInJpsBuildIdeaSync) {
+            apply(plugin = "idea")
+            idea {
+                this.module.generatedSourceDirs.add(generationRoot)
+            }
+        }
+    }
+
+
 val Project.sourceSets: SourceSetContainer
     get() = javaPluginExtension().sourceSets
 

generators/analysis-api-generator/tests/org/jetbrains/kotlin/generators/tests/analysis/api/dsl/AnalysisApiConfiguratorFactoryProvider.kt

@@ -33,9 +33,9 @@ object AnalysisApiConfiguratorFactoryProvider {
     }
 
     fun getTestPath(data: AnalysisApiTestConfiguratorFactoryData): String? = when {
-        data.frontend == FrontendKind.Fir && data.analysisApiMode == AnalysisApiMode.Ide -> "analysis/analysis-api-fir/tests"
+        data.frontend == FrontendKind.Fir && data.analysisApiMode == AnalysisApiMode.Ide -> "analysis/analysis-api-fir/tests-gen"
-        data.frontend == FrontendKind.Fe10 && data.analysisApiMode == AnalysisApiMode.Ide -> "analysis/analysis-api-fe10/tests"
+        data.frontend == FrontendKind.Fe10 && data.analysisApiMode == AnalysisApiMode.Ide -> "analysis/analysis-api-fe10/tests-gen"
-        data.frontend == FrontendKind.Fir && data.analysisApiMode == AnalysisApiMode.Standalone -> "analysis/analysis-api-standalone/tests"
+        data.frontend == FrontendKind.Fir && data.analysisApiMode == AnalysisApiMode.Standalone -> "analysis/analysis-api-standalone/tests-gen"
         else -> null
     }