pr review: add more tests

Author: sparecycles

tests/baselines/Issue96.txt

@@ -1,4 +1,10 @@
 [1, 4]: source.ts meta.var.expr.ts 
 [2, 4]: source.ts meta.var.expr.ts 
 [4, 4]: source.ts 
-[5, 4]: source.ts 
+[5, 4]: source.ts 
+[7, 5]: source.ts meta.var.expr.ts meta.var-single-variable.expr.ts variable.ts 
+[8, 1]: source.ts 
+[9, 1]: source.ts storage.type.ts 
+[9, 7]: source.ts 
+[11, 5]: source.ts meta.var.expr.ts meta.var-single-variable.expr.ts variable.ts 
+[12, 1]: source.ts 

tests/cases/Issue96.ts

@@ -2,4 +2,11 @@ var^^ letter;
 let^^ variable;
 
 var^^iable;
-let^^ter;
+let^^ter;
+
+var ^^constenum = 10;
+^^constenum += 10;
+^^const ^^enumE { }
+
+var ^^constable = "I am rrrrrroyal!";
+^^constable += " Royal, I say!"