Fix top-level inference errors for most of the newly failing tests.

tests/language_strong/deferred_static_seperate_lib1.dart

Index: tests/language_strong/deferred_static_seperate_lib1.dart
diff --git a/tests/language_strong/deferred_static_seperate_lib1.dart b/tests/language_strong/deferred_static_seperate_lib1.dart
index 92965237f97b07e405526d14bf6f9c9d4582d3b8..feb293ee0eabc68448cbe975727cc785d1c34e2f 100644
--- a/tests/language_strong/deferred_static_seperate_lib1.dart
+++ b/tests/language_strong/deferred_static_seperate_lib1.dart
@@ -28,8 +28,8 @@ class C1 {
 }
 
 class C2 {
-  static var foo = new Map.from({1: 2});
-  var bar = new Map.from({1: 2});
+  static var foo = new Map<int, int>.from({1: 2});
+  var bar = new Map<int, int>.from({1: 2});
 }
 
 class C3 {
@@ -38,8 +38,8 @@ class C3 {
 }
 
 class C4 {
-  static final foo = new Map.from({x: x});
-  final bar = new Map.from({x: x});
+  static final foo = new Map<ConstClass, ConstClass>.from({x: x});
+  final bar = new Map<ConstClass, ConstClass>.from({x: x});
 }
 
 class C5 {