Fix type errors in math.min() and math.max().

pkg/dev_compiler/lib/js/legacy/dart_sdk.js

Index: pkg/dev_compiler/lib/js/legacy/dart_sdk.js
diff --git a/pkg/dev_compiler/lib/js/legacy/dart_sdk.js b/pkg/dev_compiler/lib/js/legacy/dart_sdk.js
index 4c981ff594b2e279a632578f401f854f071ff2a6..63d08bd039f9230b0ea1f54fda05fb5672a6939b 100644
--- a/pkg/dev_compiler/lib/js/legacy/dart_sdk.js
+++ b/pkg/dev_compiler/lib/js/legacy/dart_sdk.js
@@ -36959,40 +36959,13 @@ dart_library.library('dart_sdk', null, /* Imports */[
   math.SQRT2 = 1.4142135623730951;
   math.min = function(T) {
     return (a, b) => {
-      if (!(typeof a == 'number')) dart.throw(new core.ArgumentError(a));
-      if (!(typeof b == 'number')) dart.throw(new core.ArgumentError(b));
-      if (dart.notNull(a) > dart.notNull(b)) return b;
-      if (dart.notNull(a) < dart.notNull(b)) return a;
-      if (typeof b == 'number') {
-        if (typeof a == 'number') {
-          if (a == 0.0) {
-            return (dart.notNull(a) + dart.notNull(b)) * dart.notNull(a) * dart.notNull(b);
-          }
-        }
-        if (a == 0 && dart.test(b[dartx.isNegative]) || dart.test(b[dartx.isNaN])) return b;
-        return a;
-      }
-      return a;
+      return Math.min(_js_helper.checkNum(a), _js_helper.checkNum(b));
     };
   };
   dart.fn(math.min, TAndTToT());
   math.max = function(T) {
     return (a, b) => {
-      if (!(typeof a == 'number')) dart.throw(new core.ArgumentError(a));
-      if (!(typeof b == 'number')) dart.throw(new core.ArgumentError(b));
-      if (dart.notNull(a) > dart.notNull(b)) return a;
-      if (dart.notNull(a) < dart.notNull(b)) return b;
-      if (typeof b == 'number') {
-        if (typeof a == 'number') {
-          if (a == 0.0) {
-            return dart.notNull(a) + dart.notNull(b);
-          }
-        }
-        if (dart.test(b[dartx.isNaN])) return b;
-        return a;
-      }
-      if (b == 0 && dart.test(a[dartx.isNegative])) return b;
-      return a;
+      return Math.max(_js_helper.checkNum(a), _js_helper.checkNum(b));
     };
   };
   dart.fn(math.max, TAndTToT$());