Only set types of conditional expressions in strong mode.

pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect

Index: pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect b/pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect
index 42c068409acdf6584ffc5a3cf5bcfd34ecc71804..25c6b2e8c85a57ebfd89a223d4f19ca77bb594c4 100644
--- a/pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect
+++ b/pkg/front_end/testcases/inference/infer_assign_to_static.dart.strong.expect
@@ -31,14 +31,14 @@ static method f<T extends core::Object>() → self::f::T
   return null;
 static method test_topLevelVariable() → void {
   self::topLevelVariable = self::f<self::B>();
-  self::topLevelVariable.{core::Object::==}(null) ?{dynamic} self::topLevelVariable = self::f<self::B>() : null;
+  self::topLevelVariable.{core::Object::==}(null) ? self::topLevelVariable = self::f<self::B>() : null;
   self::topLevelVariable = self::topLevelVariable.{self::B::+}(self::f<dynamic>());
   self::topLevelVariable = self::topLevelVariable.{self::B::*}(self::f<dynamic>());
   self::topLevelVariable = self::topLevelVariable.{self::B::&}(self::f<dynamic>());
   self::topLevelVariable = self::topLevelVariable.{self::B::-}(1);
   self::topLevelVariable = self::topLevelVariable.{self::B::-}(1);
   self::B v1 = self::topLevelVariable = self::f<self::B>();
-  self::B v2 = let final dynamic #t1 = self::topLevelVariable in #t1.{core::Object::==}(null) ?{dynamic} self::topLevelVariable = self::f<self::B>() : #t1;
+  self::B v2 = let final dynamic #t1 = self::topLevelVariable in #t1.{core::Object::==}(null) ? self::topLevelVariable = self::f<self::B>() : #t1;
   self::A v3 = self::topLevelVariable = self::topLevelVariable.{self::B::+}(self::f<dynamic>());
   self::B v4 = self::topLevelVariable = self::topLevelVariable.{self::B::*}(self::f<dynamic>());
   self::C v5 = self::topLevelVariable = self::topLevelVariable.{self::B::&}(self::f<dynamic>());
@@ -47,14 +47,14 @@ static method test_topLevelVariable() → void {
 }
 static method test_staticVariable() → void {
   self::B::staticVariable = self::f<self::B>();
-  self::B::staticVariable.{core::Object::==}(null) ?{dynamic} self::B::staticVariable = self::f<self::B>() : null;
+  self::B::staticVariable.{core::Object::==}(null) ? self::B::staticVariable = self::f<self::B>() : null;
   self::B::staticVariable = self::B::staticVariable.{self::B::+}(self::f<dynamic>());
   self::B::staticVariable = self::B::staticVariable.{self::B::*}(self::f<dynamic>());
   self::B::staticVariable = self::B::staticVariable.{self::B::&}(self::f<dynamic>());
   self::B::staticVariable = self::B::staticVariable.{self::B::-}(1);
   self::B::staticVariable = self::B::staticVariable.{self::B::-}(1);
   self::B v1 = self::B::staticVariable = self::f<self::B>();
-  self::B v2 = let final dynamic #t4 = self::B::staticVariable in #t4.{core::Object::==}(null) ?{dynamic} self::B::staticVariable = self::f<self::B>() : #t4;
+  self::B v2 = let final dynamic #t4 = self::B::staticVariable in #t4.{core::Object::==}(null) ? self::B::staticVariable = self::f<self::B>() : #t4;
   self::A v3 = self::B::staticVariable = self::B::staticVariable.{self::B::+}(self::f<dynamic>());
   self::B v4 = self::B::staticVariable = self::B::staticVariable.{self::B::*}(self::f<dynamic>());
   self::C v5 = self::B::staticVariable = self::B::staticVariable.{self::B::&}(self::f<dynamic>());