Whitespace cleanup: tab removal in tests directory

Also changed space-based indentation in touched files if they used
4 spaces for indentation (instead of the most-often-used 2).

Also added new line to end of touched files if they did not end
that way.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

tests/jerry/regression-test-issue-655.js

@@ -14,7 +14,7 @@
 // limitations under the License.
 
 try {
-	eval("if (true) {}\n/a/;");
+  eval("if (true) {}\n/a/;");
 } catch (e) {
-	assert (false);
+  assert (false);
 }