tests: deprecate the swift_in_compiler lit feature

Now that SwiftCompilerSources are always enabled, `swift_in_compiler` is not needed anymore.
Set this feature unconditionally for tests which still include `REQUIRES: swift_in_compiler`.

Author: eeckstein

test/lit.cfg

@@ -901,6 +901,10 @@ if 'swift_evolve' in lit_config.params:
 if not 'swift_driver' in lit_config.params:
     config.available_features.add("cplusplus_driver")
 
+# SwiftCompilerSources are now always enabled:
+# TODO: remove all the `REQUIRES: swift_in_compiler` in tests
+config.available_features.add('swift_in_compiler')
+
 # Check if we need to run lit tests using the legacy driver or the new driver
 # The default for existing test runs is to use the legacy driver.
 # The new driver is tested separately.

test/lit.site.cfg.in

@@ -166,16 +166,6 @@ config.swift_stdlib_enable_objc_interop = "@SWIFT_STDLIB_ENABLE_OBJC_INTEROP@" =
 # Configured in DarwinSDKs.cmake
 config.freestanding_sdk_name = "@SWIFT_SDK_FREESTANDING_LIB_SUBDIR@"
 
-if "@BOOTSTRAPPING_MODE@" != "OFF":
-  config.available_features.add('swift_in_compiler')
-
-if "@BOOTSTRAPPING_MODE@" == 'HOSTTOOLS':
-  config.available_features.add('hosttools_mode')
-elif "@BOOTSTRAPPING_MODE@" == 'BOOTSTRAPPING':
-  config.available_features.add('bootstrapping_mode')
-elif "@BOOTSTRAPPING_MODE@" == 'BOOTSTRAPPING-WITH-HOSTLIBS':
-  config.available_features.add('bootstrapping_with_hostlibs_mode')
-
 if '@SWIFT_BUILD_SWIFT_SYNTAX@' == 'TRUE':
   config.available_features.add('swift_swift_parser')
 

validation-test/lit.site.cfg.in

@@ -145,9 +145,6 @@ config.swift_stdlib_enable_objc_interop = "@SWIFT_STDLIB_ENABLE_OBJC_INTEROP@" =
 # Configured in DarwinSDKs.cmake
 config.freestanding_sdk_name = "@SWIFT_SDK_FREESTANDING_LIB_SUBDIR@"
 
-if "@BOOTSTRAPPING_MODE@" != "OFF":
-  config.available_features.add('swift_in_compiler')
-
 # Let the main config do the real work.
 config.test_exec_root = os.path.dirname(os.path.realpath(__file__))
 lit_config.load_config(config, "@SWIFT_SOURCE_DIR@/validation-test/lit.cfg")