dart2js: Use the NoInline annotation on getInterceptor in the JS runtime.

sdk/lib/_internal/js_runtime/lib/interceptors.dart

Index: sdk/lib/_internal/js_runtime/lib/interceptors.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/interceptors.dart b/sdk/lib/_internal/js_runtime/lib/interceptors.dart
index cf4d39b293645614ab6c16d4c1f0e508917287c9..0247af4ab45094c9af83d02c647d4dfd7e6c0c48 100644
--- a/sdk/lib/_internal/js_runtime/lib/interceptors.dart
+++ b/sdk/lib/_internal/js_runtime/lib/interceptors.dart
@@ -68,6 +68,7 @@ _symbolMapToStringMap(Map<Symbol, dynamic> map) {
  * to emit a call to an intercepted method, that is a method that is
  * defined in an interceptor class.
  */
+@NoInline()
 getInterceptor(object) {
   // This is a magic method: the compiler does specialization of it
   // depending on the uses of intercepted methods and instantiated