Cleanup - fix various tests.

src/common/services/UnicodeService.test.ts

@@ -12,7 +12,7 @@ class DummyProvider implements IUnicodeVersionProvider {
   public wcwidth(n: number): 0 | 1 | 2 {
     return 2;
   }
-  charProperties(codepoint: number): number {
+  public charProperties(codepoint: number): number {
     return UnicodeService.createPropertyValue(0, this.wcwidth(codepoint));
   }
 }