add dont_check_failure_status option in the compiler test

Author: SparrowLii

Diff for: src/tools/compiletest/src/header.rs

@@ -150,6 +150,8 @@ pub struct TestProps {
     pub normalize_stdout: Vec<(String, String)>,
     pub normalize_stderr: Vec<(String, String)>,
     pub failure_status: i32,
+    // For UI tests, allows compiler to exit with arbitrary failure status
+    pub dont_check_failure_status: bool,
     // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
     // resulting Rust code.
     pub run_rustfix: bool,
@@ -192,6 +194,7 @@ mod directives {
     pub const CHECK_TEST_LINE_NUMBERS_MATCH: &'static str = "check-test-line-numbers-match";
     pub const IGNORE_PASS: &'static str = "ignore-pass";
     pub const FAILURE_STATUS: &'static str = "failure-status";
+    pub const DONT_CHECK_FAILURE_STATUS: &'static str = "dont-check-failure-status";
     pub const RUN_RUSTFIX: &'static str = "run-rustfix";
     pub const RUSTFIX_ONLY_MACHINE_APPLICABLE: &'static str = "rustfix-only-machine-applicable";
     pub const ASSEMBLY_OUTPUT: &'static str = "assembly-output";
@@ -239,6 +242,7 @@ impl TestProps {
             normalize_stdout: vec![],
             normalize_stderr: vec![],
             failure_status: -1,
+            dont_check_failure_status: false,
             run_rustfix: false,
             rustfix_only_machine_applicable: false,
             assembly_output: None,
@@ -401,6 +405,12 @@ impl TestProps {
                     self.failure_status = code;
                 }
 
+                config.set_name_directive(
+                    ln,
+                    DONT_CHECK_FAILURE_STATUS,
+                    &mut self.dont_check_failure_status,
+                );
+
                 config.set_name_directive(ln, RUN_RUSTFIX, &mut self.run_rustfix);
                 config.set_name_directive(
                     ln,

Diff for: src/tools/compiletest/src/runtest.rs

@@ -309,7 +309,9 @@ impl<'test> TestCx<'test> {
                 );
             }
 
-            self.check_correct_failure_status(proc_res);
+            if !self.props.dont_check_failure_status {
+                self.check_correct_failure_status(proc_res);
+            }
         }
     }
 

Diff for: tests/ui/recursion/issue-95134.rs

@@ -1,7 +1,7 @@
 // build-fail
 // known-bug: #95134
 // compile-flags: -Copt-level=0
-// failure-status: 101
+// dont-check-failure-status
 // dont-check-compiler-stderr
 
 pub fn encode_num<Writer: ExampleWriter>(n: u32, mut writer: Writer) -> Result<(), Writer::Error> {