fix: unit tests were using strict equality testing for numeric results....

fix: unit tests were using strict equality testing for numeric results. Modified to check for 15 decimals of precision. Now the exp unit test passes.

tests/generators/unittest_javascript.js

@@ -86,6 +86,8 @@ Blockly.JavaScript['unittest_main'].defineAssert_ = function(block) {
         '  function equals(a, b) {',
         '    if (a === b) {',
         '      return true;',
+        '    } else if ((typeof a == "number") && (typeof b == "number") && (a.toPrecision(15) == b.toPrecision(15))) {',
+        '      return true;',
         '    } else if (a instanceof Array && b instanceof Array) {',
         '      if (a.length != b.length) {',
         '        return false;',