[Build][Test] Fix TypeRoundTrip/round-trip.swift.

`TypeRoundTrip/round-trip.swift` tries to link with `libswiftRemoteInspection`,
but that library isn't in the default link path, so we need to add a `-L`
option to the command line in the test.

Also, we should check that `SWIFT_BUILD_REMOTE_MIRROR` is enabled and
disable the test if not, because otherwise `libswiftRemoteInspection` won't
have been built.

rdar://123503470

Author: al45tair

test/CMakeLists.txt

@@ -47,6 +47,10 @@ function(get_test_dependencies SDK result_var_name)
     list(APPEND deps sdk-overlay)
   endif()
 
+  if(SWIFT_BUILD_REMOTE_MIRROR)
+    list(APPEND deps swiftRemoteInspection)
+  endif()
+
   set(deps_binaries)
 
   if (SWIFT_INCLUDE_TOOLS)
@@ -215,6 +219,7 @@ normalize_boolean_spelling(SWIFT_STDLIB_ENABLE_OBJC_INTEROP)
 normalize_boolean_spelling(SWIFT_ENABLE_BACKTRACING)
 normalize_boolean_spelling(SWIFT_BUILD_SWIFT_SYNTAX)
 normalize_boolean_spelling(SWIFT_ENABLE_SYNCHRONIZATION)
+normalize_boolean_spelling(SWIFT_BUILD_REMOTE_MIRROR)
 is_build_type_optimized("${SWIFT_STDLIB_BUILD_TYPE}" SWIFT_OPTIMIZED)
 
 # Get 'SWIFT_HOST_SDKROOT' for lit.site.cfg.in
@@ -432,6 +437,10 @@ foreach(SDK ${SWIFT_SDKS})
           list(APPEND LIT_ARGS "--param" "synchronization")
         endif()
 
+        if(SWIFT_BUILD_REMOTE_MIRROR)
+          list(APPEND LIT_ARGS "--param" "remote_mirror")
+        endif()
+
         list(APPEND LIT_ARGS "--param" "threading=${SWIFT_SDK_${SDK}_THREADING_PACKAGE}")
 
         # Enable on-crash backtracing if supported

test/TypeRoundTrip/round-trip.swift

@@ -6,12 +6,13 @@
 // RUN: echo "func runAllTests() throws {" >> %t/all-tests.swift
 // RUN: for module in %S/Inputs/testcases/*.swift; do modname=$(basename $module .swift); %target-build-swift -g -static -emit-module-path %t/$modname.swiftmodule -emit-module -emit-library -module-name $modname -o %t/%target-static-library-name($modname) -I%t -L%t $module -lRoundTrip; echo "  print(\"--- $modname\")" >> %t/all-tests.swift; echo "  $modname.test()" >> %t/all-tests.swift; echo "  print(\"\")" >> %t/all-tests.swift; echo "-l$modname" >> %t/link.txt; done
 // RUN: echo "}" >> %t/all-tests.swift
-// RUN: %target-build-swift -g -I%t -o %t/round-trip %s %t/all-tests.swift -L%t %target-cxx-lib $(cat %t/link.txt) -lm -lRoundTrip -lswiftRemoteInspection
+// RUN: %target-build-swift -g -I%t -o %t/round-trip %s %t/all-tests.swift -L%t %target-cxx-lib $(cat %t/link.txt) -lm -lRoundTrip -L%swift-lib-dir/swift/%target-sdk-name/%target-arch -lswiftRemoteInspection
 // RUN: %target-codesign %t/round-trip
 // RUN: %target-run %t/round-trip | %FileCheck %s
 
 // REQUIRES: executable_test
 // REQUIRES: shell
+// REQUIRES: remote_mirror
 // UNSUPPORTED: use_os_stdlib
 // UNSUPPORTED: back_deployment_runtime
 

test/lit.cfg

@@ -537,6 +537,10 @@ synchronization = lit_config.params.get('synchronization', None)
 if synchronization is not None:
     config.available_features.add('synchronization')
 
+remote_mirror = lit_config.params.get('remote_mirror', None)
+if remote_mirror is not None:
+    config.available_features.add('remote_mirror')
+
 test_options = os.environ.get('SWIFT_TEST_OPTIONS')
 if test_options:
     config.swift_test_options += ' '