Add a new test for depfile generation with spaces

This checks that dependency generation is correct even when the sources
and outputs have spaces in them.

test cases/common/132 dependency file generation/main .c

@@ -0,0 +1,3 @@
+int main(int argc, char *argv[]) {
+  return 0;
+}

test cases/common/132 dependency file generation/meson.build

@@ -0,0 +1,12 @@
+project('dep file gen', 'c')
+
+cc_id = meson.get_compiler('c').get_id()
+if cc_id == 'intel'
+  # ICC does not escape spaces in paths in the dependency file, so Ninja
+  # (correctly) thinks that the rule has multiple outputs and errors out:
+  # 'depfile has multiple output paths'
+  error('MESON_SKIP_TEST: Skipping test with Intel compiler because it generates broken dependency files')
+endif
+
+e = executable('main file', 'main .c')
+test('test it', e)