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/regexp-construct.js

@@ -111,24 +111,24 @@ assert (r.ignoreCase === false);
 assert (r.multiline === false);
 
 try {
-	new RegExp (undefined, "ii");
-	assert (false);
+  new RegExp (undefined, "ii");
+  assert (false);
 } catch (e) {
-	assert (e instanceof SyntaxError);
+  assert (e instanceof SyntaxError);
 }
 
 try {
-	new RegExp ("", "gg");
-	assert (false);
+  new RegExp ("", "gg");
+  assert (false);
 } catch (e) {
-	assert (e instanceof SyntaxError);
+  assert (e instanceof SyntaxError);
 }
 
 try {
-	new RegExp (void 0, "mm");
-	assert (false);
+  new RegExp (void 0, "mm");
+  assert (false);
 } catch (e) {
-	assert (e instanceof SyntaxError);
+  assert (e instanceof SyntaxError);
 }
 
 r = new RegExp (undefined, undefined);