Reorganize tests into a real spec suite

spec/tests/coffeescript/test_beware_infinite_loop.txt

@@ -0,0 +1,14 @@
+# This demonstrates the case that "This isn't really guarding" comment
+# refers to.
+
+---input---
+/a/x;
+
+---tokens---
+''            Text
+'/'           Operator
+'a'           Name.Other
+'/'           Operator
+'x'           Name.Other
+';'           Punctuation
+'\n'          Text.Whitespace

spec/tests/coffeescript/test_mixed_slashes.txt

@@ -0,0 +1,13 @@
+---input---
+a?/foo/:1/2;
+
+---tokens---
+'a'           Name.Other
+'?'           Operator
+'/foo/'       Literal.String.Regex
+':'           Operator
+'1'           Literal.Number.Integer
+'/'           Operator
+'2'           Literal.Number.Integer
+';'           Punctuation
+'\n'          Text.Whitespace