Add resilient_stdlib to available_features and XFAIL remaining failing tests

All unoptimized tests should now pass when Swift is built with
'build-script -- --swift-stdlib-enable-resilience=1'.

There are still some issues when the tests themselves are built
with optimizations via 'check-swift-validation-optimize'.

Fixes <rdar://problem/28409189>.

Author: slavapestov

test/DebugInfo/linetable-cleanups.swift

@@ -1,5 +1,8 @@
 // RUN: %target-swift-frontend %s -emit-ir -g -o - | %FileCheck %s
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 func markUsed<T>(_ t: T) {}
 
 class Person {

test/IRGen/vector_reduction.swift

@@ -2,6 +2,9 @@
 
 // REQUIRES: CPU=x86_64
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 // We were missing target transform info and not vectorizing the loop below.
 
 // CHECK: xor <2 x i64>

test/SILGen/unsafe_pointer_gen.swift

@@ -1,5 +1,8 @@
 // RUN: %target-swift-frontend -O -emit-sil -parse-as-library %s | %FileCheck %s
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 // Test the absence of a 'strict' flag.
 // CHECK-LABEL: _TF18unsafe_pointer_gen13test_raw_loadFT2rpSV_Si
 // CHECK: pointer_to_address {{%.*}} : $Builtin.RawPointer to $*Int

test/SILOptimizer/DestructorAnalysis.swift

@@ -3,6 +3,9 @@
 // This test depends on asserts because we look at debug output.
 // REQUIRES: asserts
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 class Foo {}
 
 var a: [Int] = []

test/SILOptimizer/bridged_casts_folding.swift

@@ -2,6 +2,9 @@
 
 // REQUIRES: objc_interop
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 // Check that casts between bridged types are replaced by more 
 // efficient code sequences.
 // 

test/SILOptimizer/cast_folding_no_bridging.sil

@@ -1,6 +1,9 @@
 // RUN: %target-swift-frontend -O -emit-sil %s | %FileCheck %s
 // REQUIRES: objc_interop
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 // We want to check that casts between two types which are both Swift types or
 // both are ObjC types are not optimized by the cast optimizer into casts
 // to/from ObjC.

test/SILOptimizer/prespecialize.swift

@@ -2,6 +2,9 @@
 
 // REQUIRES: optimized_stdlib
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 // Check that pre-specialization works at -Onone.
 // This test requires the standard library to be compiled with pre-specializations!
 

test/SILOptimizer/sil_combine_objc.sil

@@ -1,6 +1,9 @@
 // RUN: %target-sil-opt -enable-sil-verify-all %s -sil-combine -verify-skip-unreachable-must-be-last | %FileCheck %s
 // REQUIRES: objc_interop
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 sil_stage canonical
 
 import Builtin

test/SILOptimizer/stack_promotion_escaping.swift

@@ -1,5 +1,8 @@
 // RUN: %target-swift-frontend -parse-as-library -O -module-name=test %s -emit-sil | %FileCheck %s
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 final class Item {}
 
 final public class Escaper {

test/lit.site.cfg.in

@@ -64,6 +64,9 @@ if "@SWIFT_AST_VERIFIER@" == "TRUE":
 if "@SWIFT_OPTIMIZED@" == "TRUE":
     config.available_features.add("optimized_stdlib")
 
+if "@SWIFT_STDLIB_ENABLE_RESILIENCE@" == "TRUE":
+    config.available_features.add("resilient_stdlib")
+
 if "@SWIFT_HAVE_WORKING_STD_REGEX@" == "FALSE":
     config.available_features.add('broken_std_regex')
 

test/stdlib/FloatingPoint.swift.gyb

@@ -3,6 +3,9 @@
 // RUN: %line-directive %t/FloatingPoint.swift -- %target-run %t/a.out
 // REQUIRES: executable_test
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 %{
 from gyb_stdlib_unittest_support import TRACE, stackTrace, trace
 }%

validation-test/Reflection/reflect_Character.swift

@@ -4,6 +4,9 @@
 // REQUIRES: objc_interop
 // REQUIRES: executable_test
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 import SwiftReflectionTest
 
 class TestClass {

validation-test/Reflection/reflect_multiple_types.swift

@@ -4,6 +4,9 @@
 // REQUIRES: objc_interop
 // REQUIRES: executable_test
 
+// FIXME: https://bugs.swift.org/browse/SR-2808
+// XFAIL: resilient_stdlib
+
 import SwiftReflectionTest
 import Foundation
 

validation-test/lit.site.cfg.in

@@ -60,6 +60,9 @@ else:
 if "@SWIFT_OPTIMIZED@" == "TRUE":
     config.available_features.add("optimized_stdlib")
 
+if "@SWIFT_STDLIB_ENABLE_RESILIENCE@" == "TRUE":
+    config.available_features.add("resilient_stdlib")
+
 if "@CMAKE_GENERATOR@" == "Xcode":
     xcode_bin_dir = os.path.join(config.llvm_obj_root, "@LLVM_BUILD_TYPE@",
                                  'bin')