Serialize and resynthesize variable initializers.

pkg/analyzer/lib/src/summary/summarize_elements.dart

Index: pkg/analyzer/lib/src/summary/summarize_elements.dart
diff --git a/pkg/analyzer/lib/src/summary/summarize_elements.dart b/pkg/analyzer/lib/src/summary/summarize_elements.dart
index b63128786de196a860b13bf8b3e222d9b878eb29..c30393678c034d307bdea3e6d0acbdf3ff8e6778 100644
--- a/pkg/analyzer/lib/src/summary/summarize_elements.dart
+++ b/pkg/analyzer/lib/src/summary/summarize_elements.dart
@@ -38,7 +38,10 @@ ReferenceKind _getReferenceKind(Element element) {
   } else if (element is ConstructorElement) {
     return ReferenceKind.constructor;
   } else if (element is FunctionElement) {
-    return ReferenceKind.topLevelFunction;
+    if (element.enclosingElement is CompilationUnitElement) {
+      return ReferenceKind.topLevelFunction;
+    }
+    return ReferenceKind.function;
   } else if (element is FunctionTypeAliasElement) {
     return ReferenceKind.typedef;
   } else if (element is PropertyAccessorElement) {
@@ -519,7 +522,10 @@ class _CompilationUnitSerializer {
     UnlinkedExecutableBuilder b = new UnlinkedExecutableBuilder();
     b.name = executableElement.name;
     b.nameOffset = executableElement.nameOffset;
-    if (executableElement is! ConstructorElement) {
+    if (executableElement.enclosingElement is VariableElement) {
+      // TODO(scheglov) remove this check and serialize initializer types
+      // Note that for code like `var v = null` w need to support Bottom.
+    } else if (executableElement is! ConstructorElement) {
       if (!executableElement.hasImplicitReturnType) {
         b.returnType = serializeTypeRef(
             executableElement.type.returnType, executableElement);
@@ -700,6 +706,10 @@ class _CompilationUnitSerializer {
         b.defaultValue = serializeConstExpr(initializer);
       }
     }
+    // TODO(scheglov) VariableMember.initializer is not implemented
+    if (parameter is! VariableMember && parameter.initializer != null) {
+      b.initializer = serializeExecutable(parameter.initializer);
+    }
     {
       SourceRange visibleRange = parameter.visibleRange;
       if (visibleRange != null) {
@@ -913,6 +923,10 @@ class _CompilationUnitSerializer {
         b.visibleLength = visibleRange.length;
       }
     }
+    // TODO(scheglov) VariableMember.initializer is not implemented
+    if (variable is! VariableMember && variable.initializer != null) {
+      b.initializer = serializeExecutable(variable.initializer);
+    }
     return b;
   }