build(rust): vendor googletest crate

third_party/crates/regex-1.13.1/testdata/leftmost-all.toml

@@ -0,0 +1,25 @@
+[[test]]
+name = "alt"
+regex = 'foo|foobar'
+haystack = "foobar"
+matches = [[0, 6]]
+match-kind = "all"
+search-kind = "leftmost"
+
+[[test]]
+name = "multi"
+regex = ['foo', 'foobar']
+haystack = "foobar"
+matches = [
+  { id = 1, span = [0, 6] },
+]
+match-kind = "all"
+search-kind = "leftmost"
+
+[[test]]
+name = "dotall"
+regex = '(?s:.)'
+haystack = "foobar"
+matches = [[5, 6]]
+match-kind = "all"
+search-kind = "leftmost"