Support Dokka K2 analysis (#3094)

Dokka has its own documentable model to represent analyzed code. The analysis is performed by a compiler frontend.

In K1 the compiler frontend has descriptors that use the underlying Binding Context (global shared stateful structure). Dokka just maps descriptors to Documentable by DefaultDescriptorToDocumentableTranslator.

K2 compiler has FIR tree, which means “Frontend Intermediate Representation”, instead of Binding Context. But we do not use FIR in Dokka directly, since it is too low-level for analysis. The Kotlin compiler provides high-level Analysis API for this case. The API is used by KSP too. Analysis API represent elements of FIR (declarations, parameters and so on) as Symbols. For more details see KtSymbolByFirBuilder, KtSymbol.
For Dokka symbol is the replacement of descriptor in K2.

Also, to set up the environment of project analysis in K1 we use idea dependencies (or copy-past from there). In K2 for these aims, there is a Standalone mode for Analysis API.

1 files changed, 8 insertions, 0 deletions

diff --git a/plugins/base/src/test/kotlin/transformers/isExceptionTest.kt b/plugins/base/src/test/kotlin/transformers/isExceptionTest.kt
index ba00cf15..dd888ad6 100644
--- a/plugins/base/src/test/kotlin/transformers/isExceptionTest.kt
+++ b/plugins/base/src/test/kotlin/transformers/isExceptionTest.kt
@@ -5,8 +5,11 @@ import org.jetbrains.dokka.model.DClass
 import org.jetbrains.dokka.model.DTypeAlias
 import org.junit.jupiter.api.Test
 import utils.AbstractModelTest
+import utils.JavaCode
+import utils.UsingJDK
 
 class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.kt", "classes") {
+    @UsingJDK
     @Test
     fun `isException should work for kotlin exception`(){
         inlineModelTest(
@@ -20,6 +23,7 @@ class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.k
         }
     }
 
+    @UsingJDK
     @Test
     fun `isException should work for java exceptions`(){
         inlineModelTest(
@@ -33,6 +37,7 @@ class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.k
         }
     }
 
+    @UsingJDK
     @Test
     fun `isException should work for RuntimeException`(){
         inlineModelTest(
@@ -46,6 +51,7 @@ class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.k
         }
     }
 
+    @UsingJDK
     @Test
     fun `isException should work if exception is typealiased`(){
         inlineModelTest(
@@ -59,6 +65,7 @@ class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.k
         }
     }
 
+    @UsingJDK
     @Test
     fun `isException should work if exception is extending a typaliased class`(){
         inlineModelTest(
@@ -100,6 +107,7 @@ class IsExceptionKotlinTest : AbstractModelTest("/src/main/kotlin/classes/Test.k
     }
 }
 
+@JavaCode
 class IsExceptionJavaTest: AbstractModelTest("/src/main/kotlin/java/Test.java", "java") {
     @Test
     fun `isException should work for java exceptions`(){