Revert "Change signature of noSuchMethod to take an InvocationMirror."

lib/compiler/implementation/ssa/codegen.dart

Index: lib/compiler/implementation/ssa/codegen.dart
diff --git a/lib/compiler/implementation/ssa/codegen.dart b/lib/compiler/implementation/ssa/codegen.dart
index 0e2c6095726e78f5a99ac670c757a703347ff6eb..8e0a01cda98af0736a53a0e154cd8d20aba43fe7 100644
--- a/lib/compiler/implementation/ssa/codegen.dart
+++ b/lib/compiler/implementation/ssa/codegen.dart
@@ -1515,12 +1515,6 @@ abstract class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
                                    Selector defaultSelector) {
     // TODO(4434): For private members we need to use the untyped selector.
     if (defaultSelector.name.isPrivate()) return defaultSelector;
-    // If [JSInvocationMirror.invokeOn] has been called, we must not create a
-    // typed selector based on the receiver type.
-    if (node.element == null && // Invocation is not exact.
-        backend.compiler.enabledInvokeOn) {
-      return defaultSelector;
-    }
     HType receiverHType = types[node.inputs[0]];
     DartType receiverType = receiverHType.computeType(compiler);
     if (receiverType != null) {