[KAPT] KT-65399 Fix rendering of types with names starting with $.

Solves a specific issue with Kotlin serialization, and most likely,
similar issues with synthetic classes.

Types with `$` in other positions will be still rendered incorrectly
due to imprecise conversion of such types from Kotlin to Java
in the analysis API.


Merge-request: KT-MR-14235
Merged-by: Pavel Mikhailovskii <Pavel.Mikhailovskii@jetbrains.com>

plugins/kapt4/src/org/jetbrains/kotlin/kapt4/StubGenerator.kt

@@ -435,12 +435,14 @@ private class StubGenerator(
             }
 
             private fun Printer.printTypeSignature(type: PsiType, annotated: Boolean) {
-                printWithNoIndent(
-                    (if (type is PsiClassType && isErroneous(type)) type.rawType() else type)
-                        .getCanonicalText(annotated)
-                        .replace('$', '.')
-                        .replace(",", ", ")
-                )
+                var typeToPrint = if (type is PsiEllipsisType) type.componentType else type
+                if (typeToPrint is PsiClassType && isErroneous(typeToPrint)) typeToPrint = typeToPrint.rawType()
+                val repr = typeToPrint.getCanonicalText(annotated)
+                    .replace('$', '.') // Some mapped and marker types contain $ for some reason
+                    .replace("..", ".$") // Fixes KT-65399 and similar issues with synthetic classes with names starting with $
+                    .replace(",", ", ") // Type parameters
+                printWithNoIndent(repr)
+                if (type is PsiEllipsisType) printWithNoIndent("...")
             }
 
             private fun Printer.printTypeParams(typeParameters: Array<PsiTypeParameter>) {

plugins/kapt4/tests-gen/org/jetbrains/kotlin/kapt4/KotlinKapt4ContextTestGenerated.java

@@ -511,6 +511,12 @@ public class KotlinKapt4ContextTestGenerated extends AbstractKotlinKapt4ContextT
         runTest("plugins/kapt4/../kapt3/kapt3-compiler/testData/converter/kt61729.kt");
     }
 
+    @Test
+    @TestMetadata("kt65399.kt")
+    public void testKt65399() throws Exception {
+        runTest("plugins/kapt4/../kapt3/kapt3-compiler/testData/converter/kt65399.kt");
+    }
+
     @Test
     @TestMetadata("kt65453.kt")
     public void testKt65453() throws Exception {