Handle local functions in kernel_impact.

pkg/compiler/lib/src/resolution/members.dart

Index: pkg/compiler/lib/src/resolution/members.dart
diff --git a/pkg/compiler/lib/src/resolution/members.dart b/pkg/compiler/lib/src/resolution/members.dart
index 39bd77da09410c377fe32e9a5e52453bc9734d3a..390b16194bcca03073d70e3e03a0409620b0bc10 100644
--- a/pkg/compiler/lib/src/resolution/members.dart
+++ b/pkg/compiler/lib/src/resolution/members.dart
@@ -4157,9 +4157,7 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
   ResolutionResult visitStringInterpolation(StringInterpolation node) {
     // TODO(johnniwinther): This should be a consequence of the registration
     // of [registerStringInterpolation].
-    registry.registerTypeUse(new TypeUse.instantiation(coreTypes.stringType));
     registry.registerFeature(Feature.STRING_INTERPOLATION);
-    registerImplicitInvocation(Selectors.toString_);
 
     bool isValidAsConstant = true;
     List<ConstantExpression> parts = <ConstantExpression>[];
@@ -4244,10 +4242,6 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
     return const NoneResult();
   }
 
-  registerImplicitInvocation(Selector selector) {
-    registry.registerDynamicUse(new DynamicUse(selector, null));
-  }
-
   ResolutionResult visitAsyncForIn(AsyncForIn node) {
     if (!resolution.target.supportsAsyncAwait) {
       reporter.reportErrorMessage(