style(src): delete whitespace and use single quotes

This change edits syntax for code consistency.

It removes whitespace to match the style of the rest of the code,
and changes double quotes to single quotes to conform with
Google's JavaScript Style Guide.

Closes #12889

Author: livvielin

src/Angular.js

@@ -313,7 +313,7 @@ function forEachSorted(obj, iterator, context) {
  * @returns {function(*, string)}
  */
 function reverseParams(iteratorFn) {
-  return function(value, key) { iteratorFn(key, value); };
+  return function(value, key) {iteratorFn(key, value);};
 }
 
 /**
@@ -721,7 +721,7 @@ function isElement(node) {
  * @returns {object} in the form of {key1:true, key2:true, ...}
  */
 function makeMap(str) {
-  var obj = {}, items = str.split(","), i;
+  var obj = {}, items = str.split(','), i;
   for (i = 0; i < items.length; i++) {
     obj[items[i]] = true;
   }
@@ -1240,7 +1240,7 @@ function startingTag(element) {
     return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :
         elemHtml.
           match(/^(<[^>]+>)/)[1].
-          replace(/^<([\w\-]+)/, function(match, nodeName) { return '<' + lowercase(nodeName); });
+          replace(/^<([\w\-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});
   } catch (e) {
     return lowercase(elemHtml);
   }