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/array-prototype-push.js

@@ -45,10 +45,10 @@ assert(a.length === 4294967295);
 assert(a[4294967294] === "x");
 
 try {
-	a.push("y");
-	assert(false);
+  a.push("y");
+  assert(false);
 } catch (e) {
-	assert (e instanceof RangeError);
+  assert (e instanceof RangeError);
 }
 assert(a.length === 4294967295)
 
@@ -59,17 +59,17 @@ assert(o.length === 4294967295);
 assert(o[4294967294] === "x");
 
 try {
-	assert(o.push("y") === 4294967296);
+  assert(o.push("y") === 4294967296);
 } catch (e) {
-	assert(false);
+  assert(false);
 }
 assert(o.length === 4294967296);
 assert(o[4294967295] === "y");
 
 try {
-	assert(o.push("z") === 1);
+  assert(o.push("z") === 1);
 } catch (e) {
-	assert(false);
+  assert(false);
 }
 assert(o.length === 1);
 assert(o[0] === "z");