Revert "test: disable several tests failing in CI"

Author: lorentey

test/stdlib/TestData.swift

@@ -16,7 +16,6 @@
 // RUN: %target-run %t/TestData
 // REQUIRES: executable_test
 // REQUIRES: objc_interop
-// REQUIRES: rdar61347106
 
 import Foundation
 import Dispatch

validation-test/stdlib/Collection/FlattenCollection.swift.gyb

@@ -4,7 +4,6 @@
 
 // FIXME: the test is too slow when the standard library is not optimized.
 // rdar://problem/46878013
-// REQUIRES: rdar61347183
 // REQUIRES: optimized_stdlib
 // REQUIRES: long_test
 

validation-test/stdlib/Collection/LazyFilterCollection.swift.gyb

@@ -4,7 +4,6 @@
 
 // FIXME: the test is too slow when the standard library is not optimized.
 // rdar://problem/46878013
-// REQUIRES: rdar61347183
 // REQUIRES: optimized_stdlib
 // REQUIRES: long_test
 

validation-test/stdlib/ParameterPassing.swift.gyb

@@ -13,7 +13,6 @@
 // RUN: %gyb %s -o %t/ParameterPassing.swift
 // RUN: %line-directive %t/ParameterPassing.swift -- %target-build-swift %t/ParameterPassing.swift -o %t/a.out_Release -O
 // RUN: %target-run %t/a.out_Release
-// REQUIRES: rdar61347183
 // REQUIRES: executable_test
 // REQUIRES: long_test
 

validation-test/stdlib/SIMDParameterPassing.swift.gyb

@@ -14,7 +14,6 @@
 // RUN: %line-directive %t/SIMDParameterPassing.swift -- %target-build-swift %t/SIMDParameterPassing.swift -o %t/a.out_Release -O
 // RUN: %target-run %t/a.out_Release
 
-// REQUIRES: rdar61347183
 // REQUIRES: executable_test
 // REQUIRES: long_test
 // XFAIL: linux