[J2KT] Fix KDoc comments in Renderer.kt to match Kotlin style guideli…

…nes.

PiperOrigin-RevId: 586347959

transpiler/java/com/google/j2cl/transpiler/backend/kotlin/KotlinGeneratorStage.kt

@@ -73,11 +73,7 @@ class KotlinGeneratorStage(private val output: OutputUtils.Output, private val p
       )
 
     val renderer =
-      Renderer(
-        environment,
-        problems,
-        topLevelQualifiedNames = compilationUnit.topLevelQualifiedNamesSet
-      )
+      Renderer(environment, topLevelQualifiedNames = compilationUnit.topLevelQualifiedNamesSet)
 
     // Render types, collecting qualified names to import
     val typesSource = renderer.typesSource(compilationUnit)

transpiler/java/com/google/j2cl/transpiler/backend/kotlin/Renderer.kt

@@ -15,30 +15,25 @@
  */
 package com.google.j2cl.transpiler.backend.kotlin
 
-import com.google.j2cl.common.Problems
 import com.google.j2cl.transpiler.ast.Type
 
-/** Renderer of the Kotlin source code. */
+/**
+ * Provides context for rendering Kotlin source code.
+ *
+ * @property environment rendering environment
+ * @property currentReturnLabelIdentifier optional label to render in return statements
+ * @property currentType currently rendered type, or null if not rendering a type
+ * @property renderThisReferenceWithLabel whether to render this reference with explicit qualifier
+ * @property localNames a set of local names which are potentially shadowing imports
+ * @property topLevelQualifiedNames top-level qualified names, which will be rendered as simple name
+ *   without import
+ */
 internal data class Renderer(
-  /** Rendering environment. */
   val environment: Environment,
-
-  /** Rendering problems. */
-  val problems: Problems,
-
-  /** Label to render with the return statement. */
   val currentReturnLabelIdentifier: String? = null,
-
-  /** Currently rendered type. */
   val currentType: Type? = null,
-
-  /** Whether to render this reference with explicit qualifier. */
   // TODO(b/252138814): Remove when KT-54349 is fixed
   val renderThisReferenceWithLabel: Boolean = false,
-
-  /** A set of local names which are potentially shadowing imports. */
   val localNames: Set<String> = setOf(),
-
-  /** Top-level qualified names, which will be rendered as simple name without import. */
   val topLevelQualifiedNames: Set<String> = setOf()
 )