Implement type inference for assignments to a static variable.

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

Index: pkg/front_end/testcases/inference/infer_assign_to_static.dart.outline.expect
diff --git a/pkg/front_end/testcases/inference/infer_assign_to_static.dart.outline.expect b/pkg/front_end/testcases/inference/infer_assign_to_static.dart.outline.expect
new file mode 100644
index 0000000000000000000000000000000000000000..040381501510c80f87849d7bea8b923b804f9cea
--- /dev/null
+++ b/pkg/front_end/testcases/inference/infer_assign_to_static.dart.outline.expect
@@ -0,0 +1,34 @@
+library test;
+import self as self;
+import "dart:core" as core;
+
+class A extends core::Object {
+  constructor •() → void
+    ;
+}
+class B extends self::A {
+  static field self::B staticVariable;
+  constructor •() → void
+    ;
+  operator +(self::C v) → self::A
+    ;
+  operator -(core::int i) → self::B
+    ;
+  operator *(self::B v) → self::B
+    ;
+  operator &(self::A v) → self::C
+    ;
+}
+class C extends self::B {
+  constructor •() → void
+    ;
+}
+static field self::B topLevelVariable;
+static method f<T extends core::Object>() → self::f::T
+  ;
+static method test_topLevelVariable() → void
+  ;
+static method test_staticVariable() → void
+  ;
+static method main() → dynamic
+  ;