Fix propagation of SWIFT_ENABLE_REFLECTION from CMake into lit.cfg and re-enable 'REQUIRES: reflection' tests (#40720)

Author: kubamracek

test/CMakeLists.txt

@@ -199,6 +199,7 @@ normalize_boolean_spelling(SWIFT_RUN_TESTS_WITH_HOST_COMPILER)
 normalize_boolean_spelling(SWIFT_RUNTIME_ENABLE_LEAK_CHECKER)
 normalize_boolean_spelling(SWIFT_OPTIMIZED)
 normalize_boolean_spelling(SWIFT_STDLIB_SINGLE_THREADED_RUNTIME)
+normalize_boolean_spelling(SWIFT_ENABLE_REFLECTION)
 normalize_boolean_spelling(SWIFT_ENABLE_RUNTIME_FUNCTION_COUNTERS)
 normalize_boolean_spelling(SWIFT_HAVE_LIBXML2)
 normalize_boolean_spelling(SWIFT_INCLUDE_TOOLS)

test/stdlib/Error.swift

@@ -134,7 +134,7 @@ ErrorTests.test("try!/location")
   .skip(.custom({ _isFastAssertConfiguration() },
                 reason: "trap is not guaranteed to happen in -Ounchecked"))
   .crashOutputMatches(shouldCheckErrorLocation()
-                        ? "main/Error.swift:140"
+                        ? "main/Error.swift:\(#line + 4)"
                         : "")
   .code {
     expectCrashLater()