Cleanup RC deprecations in compiler and plugin.

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaAnnotationDescriptor.kt

@@ -80,7 +80,7 @@ class LazyJavaAnnotationDescriptor(
         val constructors = getAnnotationClass().constructors
         if (constructors.isEmpty()) return mapOf()
 
-        val nameToArg = javaAnnotation.arguments.toMapBy { it.name }
+        val nameToArg = javaAnnotation.arguments.associateBy { it.name }
 
         return constructors.first().valueParameters.keysToMapExceptNulls { valueParameter ->
             var javaAnnotationArgument = nameToArg[valueParameter.getName()]

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaClassMemberScope.kt

@@ -604,11 +604,11 @@ class LazyJavaClassMemberScope(
     }
 
     private val nestedClassIndex = c.storageManager.createLazyValue {
-        jClass.innerClasses.toMapBy { c -> c.name }
+        jClass.innerClasses.associateBy { c -> c.name }
     }
 
     private val enumEntryIndex = c.storageManager.createLazyValue {
-        jClass.fields.filter { it.isEnumEntry }.toMapBy { f -> f.name }
+        jClass.fields.filter { it.isEnumEntry }.associateBy { f -> f.name }
     }
 
     private val nestedClasses = c.storageManager.createMemoizedFunctionWithNullableValues {

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/lazy/descriptors/MemberIndex.kt

@@ -58,7 +58,7 @@ open class ClassMemberIndex(val jClass: JavaClass, val memberFilter: (JavaMember
     }
 
     private val methods = jClass.methods.asSequence().filter(methodFilter).groupBy { m -> m.name }
-    private val fields = jClass.fields.asSequence().filter(memberFilter).toMapBy { m -> m.name }
+    private val fields = jClass.fields.asSequence().filter(memberFilter).associateBy { m -> m.name }
 
     override fun findMethodsByName(name: Name): Collection<JavaMethod> = methods[name] ?: listOf()
     override fun getMethodNames(nameFilter: (Name) -> Boolean): Collection<Name> =

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/JvmNameResolver.kt

@@ -131,7 +131,7 @@ class JvmNameResolver(
                 "kotlin/collections/ListIterator", "kotlin/collections/MutableListIterator"
         )
 
-        private val PREDEFINED_STRINGS_MAP = PREDEFINED_STRINGS.withIndex().toMapBy({ it.value }, { it.index })
+        private val PREDEFINED_STRINGS_MAP = PREDEFINED_STRINGS.withIndex().associateBy({ it.value }, { it.index })
 
         fun getPredefinedStringIndex(string: String): Int? = PREDEFINED_STRINGS_MAP[string]
     }

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/header/KotlinClassHeader.kt

@@ -37,7 +37,7 @@ class KotlinClassHeader(
         MULTIFILE_CLASS_PART(5);
 
         companion object {
-            private val entryById = values().toMapBy(Kind::id)
+            private val entryById = values().associateBy(Kind::id)
 
             @JvmStatic
             fun getById(id: Int) = entryById[id] ?: UNKNOWN