Deprecate Math object in corelib in favor of dart:math library.

tests/language/math_vm_test.dart

Index: tests/language/math_vm_test.dart
diff --git a/tests/language/math_vm_test.dart b/tests/language/math_vm_test.dart
index a6f3b746a3a3fcb4e3e853fc28c8c1751f0e965d..da304b6ba3036dd7a55c49de43d9e201c6e0cd60 100644
--- a/tests/language/math_vm_test.dart
+++ b/tests/language/math_vm_test.dart
@@ -4,6 +4,8 @@
 // Tests that the VM does not crash on weird corner cases of class Math.
 // VMOptions=--optimization_counter_threshold=100
 
+#import('dart:math');
+
 class FakeNumber {
   const FakeNumber();
   void toDouble() {}
@@ -12,7 +14,7 @@ class FakeNumber {
 class MathTest {
   static bool testParseInt(x) {
     try {
-      Math.parseInt(x);  // Expects string.
+      parseInt(x);  // Expects string.
       return true;
     } catch (var e) {
       return false;
@@ -21,7 +23,7 @@ class MathTest {
 
   static bool testSqrt(x) {
     try {
-      Math.sqrt(x);  // Expects number.
+      sqrt(x);  // Expects number.
       return true;
     } catch (var e) {
       return false;