fix compiletest to search for two dash and run make fulldeps test

Author: ABouttefeux

src/test/run-make-fulldeps/issue-22131/Makefile

@@ -4,4 +4,4 @@ all: foo.rs
 	$(RUSTC) --cfg 'feature="bar"' --crate-type lib foo.rs
 	$(RUSTDOC) --test --cfg 'feature="bar"' \
 		-L $(TMPDIR) foo.rs |\
-		$(CGREP) 'foo.rs - foo (line 1) ... ok'
+		$(CGREP) 'foo.rs - foo (line 1) - run ... ok'

src/test/run-make-fulldeps/test-harness/Makefile

@@ -3,6 +3,6 @@
 all:
 	# check that #[cfg_attr(..., ignore)] does the right thing.
 	$(RUSTC) --test test-ignore-cfg.rs --cfg ignorecfg
-	$(call RUN,test-ignore-cfg) | $(CGREP) 'shouldnotignore ... ok' 'shouldignore ... ignored'
+	$(call RUN,test-ignore-cfg) | $(CGREP) 'shouldnotignore - run ... ok' 'shouldignore - ignore ... ignored'
 	$(call RUN,test-ignore-cfg --quiet) | $(CGREP) -e "^i\.$$"
 	$(call RUN,test-ignore-cfg --quiet) | $(CGREP) -v 'should'

src/tools/compiletest/src/runtest.rs

@@ -2638,7 +2638,7 @@ impl<'test> TestCx<'test> {
         let mut tested = 0;
         for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
             let tmp: Vec<&str> = s.split(" - ").collect();
-            if tmp.len() == 2 {
+            if tmp.len() == 3 {
                 let path = tmp[0].rsplit("test ").next().unwrap();
                 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
                     tested += 1;