Add capacities to some ArrayList instances in project

The changed lists were visible in the profiler memory snapshot. It's unclear
what this will save, but each of these lists was retaining at least several
megabytes of memory

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

@@ -30,6 +30,7 @@ import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.platform.JavaToKotlinClassMap
 import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.typeUtil.createProjection
+import org.jetbrains.kotlin.utils.toReadOnlyList
 
 // The index in the lambda is the position of the type component:
 // Example: for `A<B, C<D, E>>`, indices go as follows: `0 - A<...>, 1 - B, 2 - C<D, E>, 3 - D, 4 - E`,
@@ -119,7 +120,7 @@ private fun JetType.enhanceInflexible(qualifiers: (Int) -> JavaTypeQualifiers, i
 private fun List<Annotations>.compositeAnnotationsOrSingle() = when (size()) {
     0 -> error("At least one Annotations object expected")
     1 -> single()
-    else -> CompositeAnnotations(this)
+    else -> CompositeAnnotations(this.toReadOnlyList())
 }
 
 private fun TypeComponentPosition.shouldEnhance() = this != TypeComponentPosition.INFLEXIBLE