Do not load annotations of each function in JvmBuiltInsSettings.isFunctionAvailable

This fixes the exception in the case described in KT-14094 because we no
longer try to load annotations on functions which cannot be annotated
with @PlatformDependent. (However, the underlying problem in KT-14094 is
not fixed by this, and is still reproducible on explicit call to
KCallable.annotations.)

 #KT-14094 In Progress

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

@@ -263,10 +263,14 @@ open class JvmBuiltInsSettings(
     private fun ClassDescriptor.getJavaAnalogue(): LazyJavaClassDescriptor? {
         // Prevents recursive dependency: memberScope(Any) -> memberScope(Object) -> memberScope(Any)
         // No additional members should be added to Any
-        if (isAny) return null
+        if (KotlinBuiltIns.isAny(this)) return null
 
-        val fqName = fqNameUnsafe.takeIf { it.isSafe }?.toSafe() ?: return null
-        val javaAnalogueFqName = j2kClassMap.mapKotlinToJava(fqName.toUnsafe())?.asSingleFqName() ?: return null
+        // Optimization: only classes under kotlin.* can have Java analogues
+        if (!KotlinBuiltIns.isUnderKotlinPackage(this)) return null
+
+        val fqName = fqNameUnsafe
+        if (!fqName.isSafe) return null
+        val javaAnalogueFqName = j2kClassMap.mapKotlinToJava(fqName)?.asSingleFqName() ?: return null
 
         return ownerModuleDescriptor.resolveClassByFqName(javaAnalogueFqName, NoLookupLocation.FROM_BUILTINS) as? LazyJavaClassDescriptor
     }
@@ -308,11 +312,11 @@ open class JvmBuiltInsSettings(
     }
 
     override fun isFunctionAvailable(classDescriptor: ClassDescriptor, functionDescriptor: SimpleFunctionDescriptor): Boolean {
+        val javaAnalogueClassDescriptor = classDescriptor.getJavaAnalogue() ?: return true
+
         if (!functionDescriptor.annotations.hasAnnotation(PLATFORM_DEPENDENT_ANNOTATION_FQ_NAME)) return true
         if (!isAdditionalBuiltInsFeatureSupported) return false
 
-        val javaAnalogueClassDescriptor = classDescriptor.getJavaAnalogue() ?: return true
-
         val jvmDescriptor = functionDescriptor.computeJvmDescriptor()
         return javaAnalogueClassDescriptor
                     .unsubstitutedMemberScope
@@ -474,8 +478,6 @@ open class JvmBuiltInsSettings(
     }
 }
 
-private val ClassDescriptor.isAny: Boolean get() = fqNameUnsafe == KotlinBuiltIns.FQ_NAMES.any
-
 private class FallbackBuiltIns private constructor() : KotlinBuiltIns(LockBasedStorageManager()) {
     init {
         createBuiltInsModule()