Report warning/error locations in a format IDEs may already know how to parse

Examples:

meson.build:2:0: ERROR: Dependency is both required and not-found
meson.build:4: WARNING: Keyword argument "link_with" defined multiple times.

These are already matched by the default compilation-error-regexp-alist in
emacs.

Also:
Don't start 'red' markup until after the \n before an error
Unabsorb full-stop at end of warning with location from mlog.warning()
Update warning_location test

1 files changed, 7 insertions, 7 deletions

diff --git a/run_unittests.py b/run_unittests.py
index 7abbe6c..103847a 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -1713,13 +1713,13 @@ int main(int argc, char **argv) {
         tdir = os.path.join(self.unit_test_dir, '21 warning location')
         out = self.init(tdir)
         for expected in [
-            r'WARNING: Keyword argument "link_with" defined multiple times in file meson.build, line 4',
-            r'WARNING: Keyword argument "link_with" defined multiple times in file sub' + os.path.sep + r'meson.build, line 3',
-            r'WARNING: a warning of some sort in file meson.build, line 6',
-            r'WARNING: subdir warning in file sub' + os.path.sep + r'meson.build, line 4',
-            r'WARNING: Module unstable-simd has no backwards or forwards compatibility and might not exist in future releases in file meson.build, line 7',
-            r"WARNING: The variable(s) 'MISSING' in the input file conf.in are not present in the given configuration data in file meson.build, line 10",
-            r'WARNING: Passed invalid keyword argument "invalid" in file meson.build, line 1'
+            r'meson.build:4: WARNING: Keyword argument "link_with" defined multiple times.',
+            r'sub' + os.path.sep + r'meson.build:3: WARNING: Keyword argument "link_with" defined multiple times.',
+            r'meson.build:6: WARNING: a warning of some sort',
+            r'sub' + os.path.sep + r'meson.build:4: WARNING: subdir warning',
+            r'meson.build:7: WARNING: Module unstable-simd has no backwards or forwards compatibility and might not exist in future releases.',
+            r"meson.build:10: WARNING: The variable(s) 'MISSING' in the input file conf.in are not present in the given configuration data.",
+            r'meson.build:1: WARNING: Passed invalid keyword argument "invalid".',
         ]:
             self.assertRegex(out, re.escape(expected))