AST: Add several language features to the baseline feature set.

This allows us to remove their explicit `UNINTERESTING_FEATURE` entries for
them FeatureSet.cpp. All of these features have been present in the compiler
since at least Swift 5.8.

NFC.

Author: tshortli

include/swift/Basic/Features.def

@@ -127,31 +127,31 @@ BASELINE_LANGUAGE_FEATURE(BuiltinTaskGroupWithArgument, 0, "TaskGroup builtins")
 BASELINE_LANGUAGE_FEATURE(InheritActorContext, 0, "@_inheritActorContext attribute")
 BASELINE_LANGUAGE_FEATURE(ImplicitSelfCapture, 0, "@_implicitSelfCapture attribute")
 LANGUAGE_FEATURE(BuiltinBuildTaskExecutorRef, 0, "TaskExecutor-building builtins")
-LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins")
+BASELINE_LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins")
 LANGUAGE_FEATURE(BuiltinBuildComplexEqualityExecutor, 0, "Executor-building for 'complexEquality executor' builtins")
 BASELINE_LANGUAGE_FEATURE(BuiltinBuildMainExecutor, 0, "MainActor executor building builtin")
 BASELINE_LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroup, 0, "Task create in task group builtin with extra flags")
 LANGUAGE_FEATURE(BuiltinCreateAsyncTaskInGroupWithExecutor, 0, "Task create in task group builtin with extra flags")
 LANGUAGE_FEATURE(BuiltinCreateAsyncDiscardingTaskInGroup, 0, "Task create in discarding task group builtin, accounting for the Void return type")
 BASELINE_LANGUAGE_FEATURE(BuiltinCreateAsyncTaskWithExecutor, 0, "Task create builtin with extra executor preference")
 LANGUAGE_FEATURE(BuiltinCreateAsyncDiscardingTaskInGroupWithExecutor, 0, "Task create in discarding task group with extra executor preference")
-LANGUAGE_FEATURE(BuiltinCopy, 0, "Builtin.copy()")
-LANGUAGE_FEATURE(BuiltinStackAlloc, 0, "Builtin.stackAlloc")
+BASELINE_LANGUAGE_FEATURE(BuiltinCopy, 0, "Builtin.copy()")
+BASELINE_LANGUAGE_FEATURE(BuiltinStackAlloc, 0, "Builtin.stackAlloc")
 LANGUAGE_FEATURE(BuiltinUnprotectedStackAlloc, 0, "Builtin.unprotectedStackAlloc")
 LANGUAGE_FEATURE(BuiltinAllocVector, 0, "Builtin.allocVector")
-LANGUAGE_FEATURE(BuiltinTaskRunInline, 0, "Builtin.taskRunInline")
-LANGUAGE_FEATURE(BuiltinUnprotectedAddressOf, 0, "Builtin.unprotectedAddressOf")
+BASELINE_LANGUAGE_FEATURE(BuiltinTaskRunInline, 0, "Builtin.taskRunInline")
+BASELINE_LANGUAGE_FEATURE(BuiltinUnprotectedAddressOf, 0, "Builtin.unprotectedAddressOf")
 LANGUAGE_FEATURE(NewCxxMethodSafetyHeuristics, 0, "Only import C++ methods that return pointers (projections) on owned types as unsafe")
 SUPPRESSIBLE_LANGUAGE_FEATURE(SpecializeAttributeWithAvailability, 0, "@_specialize attribute with availability")
-LANGUAGE_FEATURE(BuiltinAssumeAlignment, 0, "Builtin.assumeAlignment")
-LANGUAGE_FEATURE(BuiltinCreateTaskGroupWithFlags, 0, "Builtin.createTaskGroupWithFlags")
+BASELINE_LANGUAGE_FEATURE(BuiltinAssumeAlignment, 0, "Builtin.assumeAlignment")
+BASELINE_LANGUAGE_FEATURE(BuiltinCreateTaskGroupWithFlags, 0, "Builtin.createTaskGroupWithFlags")
 SUPPRESSIBLE_LANGUAGE_FEATURE(UnsafeInheritExecutor, 0, "@_unsafeInheritExecutor")
 SUPPRESSIBLE_LANGUAGE_FEATURE(PrimaryAssociatedTypes2, 346, "Primary associated types")
 SUPPRESSIBLE_LANGUAGE_FEATURE(UnavailableFromAsync, 0, "@_unavailableFromAsync")
 SUPPRESSIBLE_LANGUAGE_FEATURE(NoAsyncAvailability, 340, "@available(*, noasync)")
 SUPPRESSIBLE_LANGUAGE_FEATURE(AssociatedTypeAvailability, 0, "Availability on associated types")
 SUPPRESSIBLE_LANGUAGE_FEATURE(AsyncSequenceFailure, 0, "Failure associated type on AsyncSequence and AsyncIteratorProtocol")
-LANGUAGE_FEATURE(BuiltinIntLiteralAccessors, 368, "Builtin.IntLiteral accessors")
+BASELINE_LANGUAGE_FEATURE(BuiltinIntLiteralAccessors, 368, "Builtin.IntLiteral accessors")
 LANGUAGE_FEATURE(Macros, 0, "Macros")
 LANGUAGE_FEATURE(FreestandingExpressionMacros, 382, "Expression macros")
 LANGUAGE_FEATURE(AttachedMacros, 389, "Attached macros")

lib/AST/FeatureSet.cpp

@@ -180,17 +180,12 @@ static bool usesFeatureRethrowsProtocol(Decl *decl) {
 }
 
 UNINTERESTING_FEATURE(BuiltinBuildTaskExecutorRef)
-UNINTERESTING_FEATURE(BuiltinBuildExecutor)
 UNINTERESTING_FEATURE(BuiltinBuildComplexEqualityExecutor)
 UNINTERESTING_FEATURE(BuiltinCreateAsyncTaskInGroupWithExecutor)
 UNINTERESTING_FEATURE(BuiltinCreateAsyncDiscardingTaskInGroup)
 UNINTERESTING_FEATURE(BuiltinCreateAsyncDiscardingTaskInGroupWithExecutor)
-UNINTERESTING_FEATURE(BuiltinCopy)
-UNINTERESTING_FEATURE(BuiltinStackAlloc)
 UNINTERESTING_FEATURE(BuiltinUnprotectedStackAlloc)
 UNINTERESTING_FEATURE(BuiltinAllocVector)
-UNINTERESTING_FEATURE(BuiltinTaskRunInline)
-UNINTERESTING_FEATURE(BuiltinUnprotectedAddressOf)
 
 static bool usesFeatureNewCxxMethodSafetyHeuristics(Decl *decl) {
   return decl->hasClangNode();
@@ -206,9 +201,6 @@ static bool usesFeatureSpecializeAttributeWithAvailability(Decl *decl) {
   return false;
 }
 
-UNINTERESTING_FEATURE(BuiltinAssumeAlignment)
-UNINTERESTING_FEATURE(BuiltinCreateTaskGroupWithFlags)
-
 static bool usesFeatureUnsafeInheritExecutor(Decl *decl) {
   return decl->getAttrs().hasAttribute<UnsafeInheritExecutorAttr>();
 }
@@ -248,8 +240,6 @@ static bool usesFeatureAsyncSequenceFailure(Decl *decl) {
   return false;
 }
 
-UNINTERESTING_FEATURE(BuiltinIntLiteralAccessors)
-
 static bool usesFeatureMacros(Decl *decl) { return isa<MacroDecl>(decl); }
 
 static bool usesFeatureFreestandingExpressionMacros(Decl *decl) {