[Lit] add target-fail-simple-swift for tests which want to crash

Author: ktoso

test/lit.cfg

@@ -1858,6 +1858,16 @@ if not getattr(config, 'target_run_simple_swift', None):
            escape_for_substitute_captures(config.target_codesign),
            escape_for_substitute_captures(config.target_run))
     )
+    config.target_fail_simple_swift_parameterized = SubstituteCaptures(
+        r"%%empty-directory(%%t) && "
+        r"%s %s %%s \1 -o %%t/a.out -module-name main  && "
+        r"%s %%t/a.out && "
+        r"{ ! %s %%t/a.out; }" #
+        % (escape_for_substitute_captures(config.target_build_swift),
+           escape_for_substitute_captures(mcp_opt),
+           escape_for_substitute_captures(config.target_codesign),
+           escape_for_substitute_captures(config.target_run))
+    )
     config.target_run_simple_swiftgyb_parameterized = SubstituteCaptures(
         r"%%empty-directory(%%t) && "
         r"%%gyb %%s -o %%t/main.swift && "
@@ -1953,6 +1963,8 @@ config.substitutions.append(('%target-run-simple-swiftgyb\(([^)]+)\)',
 config.substitutions.append(('%target-run-simple-swiftgyb', config.target_run_simple_swiftgyb))
 config.substitutions.append(('%target-run-simple-swift\(([^)]+)\)',
                             config.target_run_simple_swift_parameterized))
+config.substitutions.append(('%target-fail-simple-swift\(([^)]+)\)',
+                            config.target_fail_simple_swift_parameterized))
 config.substitutions.append(('%target-run-simple-swift', config.target_run_simple_swift))
 config.substitutions.append(('%target-run-stdlib-swiftgyb', config.target_run_stdlib_swiftgyb))
 config.substitutions.append(('%target-run-stdlib-swift', config.target_run_stdlib_swift))