Refactor handling of unqualified static updates.

pkg/compiler/lib/src/ssa/builder.dart

Index: pkg/compiler/lib/src/ssa/builder.dart
diff --git a/pkg/compiler/lib/src/ssa/builder.dart b/pkg/compiler/lib/src/ssa/builder.dart
index 6021ffcbecdb4207af86a1ec257d66a322da61fe..83d75805d34a78e33cae4ac2628a65d9ca4cf8ec 100644
--- a/pkg/compiler/lib/src/ssa/builder.dart
+++ b/pkg/compiler/lib/src/ssa/builder.dart
@@ -3613,6 +3613,17 @@ class SsaBuilder extends ast.Visitor
     stack.add(value);
   }
 
+  void generateNoSuchSetter(ast.Node location,
+                            Element element,
+                            HInstruction value) {
+    List<HInstruction> arguments =
+        value == null ? const <HInstruction>[] : <HInstruction>[value];
+    // An erroneous element indicates an unresolved static setter.
+    generateThrowNoSuchMethod(
+        location, noSuchMethodTargetSymbolString(element, 'set'),
+        argumentValues: arguments);
+  }
+
   void generateNonInstanceSetter(ast.SendSet send,
                                  Element element,
                                  HInstruction value,
@@ -3634,12 +3645,7 @@ class SsaBuilder extends ast.Visitor
       stack.add(value);
     } else if (Elements.isErroneous(element)) {
       if (element is ErroneousElement) {
-        List<HInstruction> arguments =
-            send == null ? const <HInstruction>[] : <HInstruction>[value];
-        // An erroneous element indicates an unresolved static setter.
-        generateThrowNoSuchMethod(
-            location, noSuchMethodTargetSymbolString(element, 'set'),
-            argumentValues: arguments);
+        generateNoSuchSetter(location, element,  send == null ? null : value);
       } else {
         // TODO(ahe): Do something like [generateWrongArgumentCountError].
         stack.add(graph.addConstantNull(compiler));
@@ -6462,7 +6468,7 @@ class SsaBuilder extends ast.Visitor
       ast.Node rhs,
       _) {
     generateIsDeferredLoadedCheckOfSend(node);
-    generateNonInstanceSetter(node, getter, visitAndPop(rhs));
+    generateNoSuchSetter(node, getter, visitAndPop(rhs));
   }
 
   @override
@@ -6482,7 +6488,7 @@ class SsaBuilder extends ast.Visitor
       ast.Node rhs,
       _) {
     generateIsDeferredLoadedCheckOfSend(node);
-    generateNonInstanceSetter(node, function, visitAndPop(rhs));
+    generateNoSuchSetter(node, function, visitAndPop(rhs));
   }
 
   @override
@@ -6512,7 +6518,7 @@ class SsaBuilder extends ast.Visitor
       ast.Node rhs,
       _) {
     generateIsDeferredLoadedCheckOfSend(node);
-    generateNonInstanceSetter(node, getter, visitAndPop(rhs));
+    generateNoSuchSetter(node, getter, visitAndPop(rhs));
   }
 
   @override
@@ -6532,7 +6538,7 @@ class SsaBuilder extends ast.Visitor
       ast.Node rhs,
       _) {
     generateIsDeferredLoadedCheckOfSend(node);
-    generateNonInstanceSetter(node, function, visitAndPop(rhs));
+    generateNoSuchSetter(node, function, visitAndPop(rhs));
   }
 
   @override