Rewrite .gitattributes CRLF ui tests into run-make tests

Author: Oneirical

tests/ui/json/json-bom-plus-crlf-multifile.stderr renamed to tests/run-make/json-bom-plus-crlf-multifile/json-bom-plus-crlf-multifile.stderr

@@ -0,0 +1,49 @@
+//@ reference: input.byte-order-mark
+//@ reference: input.crlf
+
+use run_make_support::{rfs, rustc, tmp_dir};
+
+fn main() {
+    let aux_content = "\u{FEFF}\
+pub fn test() {\r\n\
+\r\n\
+    let s : String = 1;  // Error in the middle of line.\r\n\
+\r\n\
+    let s : String = 1\r\n\
+    ;  // Error before the newline.\r\n\
+\r\n\
+    let s : String =\r\n\
+1;  // Error after the newline.\r\n\
+\r\n\
+    let s : String = (\r\n\
+    );  // Error spanning the newline.\r\n\
+}\r\n";
+
+    rfs::write(tmp_dir().join("json-bom-plus-crlf-multifile-aux.rs"), aux_content).unwrap();
+
+    let aux_bytes = rfs::read(tmp_dir().join("json-bom-plus-crlf-multifile-aux.rs")).unwrap();
+    assert!(aux_bytes.starts_with(b"\xEF\xBB\xBF"), "File must start with UTF-8 BOM");
+    assert!(aux_bytes.windows(2).any(|w| w == b"\r\n"), "File must contain CRLF line endings");
+
+    let main_content = "\u{FEFF}\
+#[path = \"json-bom-plus-crlf-multifile-aux.rs\"]\r\n\
+mod json_bom_plus_crlf_multifile_aux;\r\n\
+\r\n\
+fn main() {\r\n\
+    json_bom_plus_crlf_multifile_aux::test();\r\n\
+}\r\n";
+
+    rfs::write(tmp_dir().join("json-bom-plus-crlf-multifile.rs"), main_content).unwrap();
+
+    let output = rustc()
+        .input(tmp_dir().join("json-bom-plus-crlf-multifile.rs"))
+        .json("diagnostic-short")
+        .error_format("json")
+        .run_fail()
+        .stderr_utf8();
+
+    diff()
+        .expected_file("json-bom-plus-crlf-multifile.stderr")
+        .actual_text("stderr", &output)
+        .run();
+}

tests/run-make/json-bom-plus-crlf-multifile/rmake.rs

@@ -0,0 +1,37 @@
+//@ reference: input.byte-order-mark
+//@ reference: input.crlf
+
+use run_make_support::{diff, rfs, rustc, tmp_dir};
+
+fn main() {
+    let main_content = "\u{FEFF}\
+fn main() {\r\n\
+\r\n\
+    let s : String = 1;  // Error in the middle of line.\r\n\
+\r\n\
+    let s : String = 1\r\n\
+    ;  // Error before the newline.\r\n\
+\r\n\
+    let s : String =\r\n\
+1;  // Error after the newline.\r\n\
+\r\n\
+    let s : String = (\r\n\
+    );  // Error spanning the newline.\r\n\
+}\r\n";
+
+    let main_path = tmp_dir().join("json-bom-plus-crlf.rs");
+    rfs::write(&main_path, main_content).unwrap();
+
+    let main_bytes = rfs::read(&main_path).unwrap();
+    assert!(main_bytes.starts_with(b"\xEF\xBB\xBF"), "File must start with UTF-8 BOM");
+    assert!(main_bytes.windows(2).any(|w| w == b"\r\n"), "File must contain CRLF line endings");
+
+    let output = rustc()
+        .input(&main_path)
+        .json("diagnostic-short")
+        .error_format("json")
+        .run_fail()
+        .stderr_utf8();
+
+    diff().expected_file("json-bom-plus-crlf.stderr").actual_text("stderr", &output).run();
+}