Don't serialize local variables.

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

Index: pkg/analyzer/lib/src/summary/summarize_ast.dart
diff --git a/pkg/analyzer/lib/src/summary/summarize_ast.dart b/pkg/analyzer/lib/src/summary/summarize_ast.dart
index e1d45ce408f4c4edcaa49a4adf1d732065772ad1..ec83c64d3f1375eb4a9f43d7acf8684df7272980 100644
--- a/pkg/analyzer/lib/src/summary/summarize_ast.dart
+++ b/pkg/analyzer/lib/src/summary/summarize_ast.dart
@@ -251,8 +251,8 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
   final List<UnlinkedTypedefBuilder> typedefs = <UnlinkedTypedefBuilder>[];
 
   /**
-   * List of objects which should be written to [UnlinkedUnit.variables],
-   * [UnlinkedClass.fields] or [UnlinkedExecutable.localVariables].
+   * List of objects which should be written to [UnlinkedUnit.variables] or
+   * [UnlinkedClass.fields].
    */
   List<UnlinkedVariableBuilder> variables = <UnlinkedVariableBuilder>[];
 
@@ -559,36 +559,6 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
   }
 
   /**
-   * Serialize the given [declaredIdentifier] into [UnlinkedVariable], and
-   * store it in [variables].
-   */
-  void serializeDeclaredIdentifier(
-      AstNode scopeNode,
-      Comment documentationComment,
-      NodeList<Annotation> annotations,
-      bool isFinal,
-      bool isConst,
-      TypeAnnotation type,
-      bool assignPropagatedTypeSlot,
-      SimpleIdentifier declaredIdentifier) {
-    UnlinkedVariableBuilder b = new UnlinkedVariableBuilder();
-    b.isFinal = isFinal;
-    b.isConst = isConst;
-    b.name = declaredIdentifier.name;
-    b.nameOffset = declaredIdentifier.offset;
-    b.type = serializeTypeName(type);
-    b.documentationComment = serializeDocumentation(documentationComment);
-    b.annotations = serializeAnnotations(annotations);
-    b.codeRange = serializeCodeRange(declaredIdentifier);
-    if (assignPropagatedTypeSlot) {
-      b.propagatedTypeSlot = assignSlot();
-    }
-    b.visibleOffset = scopeNode?.offset;
-    b.visibleLength = scopeNode?.length;
-    this.variables.add(b);
-  }
-
-  /**
    * Serialize a [Comment] node into an [UnlinkedDocumentationComment] object.
    */
   UnlinkedDocumentationCommentBuilder serializeDocumentation(
@@ -734,12 +704,10 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
     }
     List<UnlinkedExecutableBuilder> oldExecutables = executables;
     List<UnlinkedLabelBuilder> oldLabels = labels;
-    List<UnlinkedVariableBuilder> oldVariables = variables;
     Map<int, int> oldLocalClosureIndexMap = _localClosureIndexMap;
     bool oldSerializeClosureBodyExprs = _serializeClosureBodyExprs;
     executables = <UnlinkedExecutableBuilder>[];
     labels = <UnlinkedLabelBuilder>[];
-    variables = <UnlinkedVariableBuilder>[];
     _localClosureIndexMap = <int, int>{};
     _serializeClosureBodyExprs = serializeBodyExpr;
     if (initializers != null) {
@@ -763,11 +731,9 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
     }
     b.localFunctions = executables;
     b.localLabels = labels;
-    b.localVariables = variables;
     Map<int, int> localClosureIndexMap = _localClosureIndexMap;
     executables = oldExecutables;
     labels = oldLabels;
-    variables = oldVariables;
     _localClosureIndexMap = oldLocalClosureIndexMap;
     _serializeClosureBodyExprs = oldSerializeClosureBodyExprs;
     return localClosureIndexMap;
@@ -1002,7 +968,6 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
    * in [this.variables].
    */
   void serializeVariables(
-      AstNode scopeNode,
       VariableDeclarationList variables,
       bool isDeclaredStatic,
       Comment documentationComment,
@@ -1040,8 +1005,6 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
           (variable.initializer != null || !isSemanticallyStatic)) {
         b.inferredTypeSlot = assignSlot();
       }
-      b.visibleOffset = scopeNode?.offset;
-      b.visibleLength = scopeNode?.length;
       this.variables.add(b);
     }
   }
@@ -1055,21 +1018,6 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
   }
 
   @override
-  void visitCatchClause(CatchClause node) {
-    SimpleIdentifier exception = node.exceptionParameter;
-    SimpleIdentifier st = node.stackTraceParameter;
-    if (exception != null) {
-      serializeDeclaredIdentifier(
-          node, null, null, false, false, node.exceptionType, false, exception);
-    }
-    if (st != null) {
-      serializeDeclaredIdentifier(
-          node, null, null, false, false, null, false, st);
-    }
-    super.visitCatchClause(node);
-  }
-
-  @override
   void visitClassDeclaration(ClassDeclaration node) {
     TypeName superclass =
         node.extendsClause == null ? null : node.extendsClause.superclass;
@@ -1207,7 +1155,7 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
 
   @override
   void visitFieldDeclaration(FieldDeclaration node) {
-    serializeVariables(null, node.fields, node.staticKeyword != null,
+    serializeVariables(node.fields, node.staticKeyword != null,
         node.documentationComment, node.metadata, true);
   }
 
@@ -1227,32 +1175,6 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
   }
 
   @override
-  void visitForEachStatement(ForEachStatement node) {
-    DeclaredIdentifier loopVariable = node.loopVariable;
-    if (loopVariable != null) {
-      serializeDeclaredIdentifier(
-          node,
-          loopVariable.documentationComment,
-          loopVariable.metadata,
-          loopVariable.isFinal,
-          loopVariable.isConst,
-          loopVariable.type,
-          true,
-          loopVariable.identifier);
-    }
-    super.visitForEachStatement(node);
-  }
-
-  @override
-  void visitForStatement(ForStatement node) {
-    VariableDeclarationList declaredVariables = node.variables;
-    if (declaredVariables != null) {
-      serializeVariables(node, declaredVariables, false, null, null, false);
-    }
-    super.visitForStatement(node);
-  }
-
-  @override
   void visitFunctionDeclaration(FunctionDeclaration node) {
     executables.add(serializeExecutable(
         node,
@@ -1451,8 +1373,8 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
 
   @override
   void visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
-    serializeVariables(null, node.variables, false, node.documentationComment,
-        node.metadata, false);
+    serializeVariables(
+        node.variables, false, node.documentationComment, node.metadata, false);
   }
 
   @override
@@ -1470,8 +1392,7 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
 
   @override
   void visitVariableDeclarationStatement(VariableDeclarationStatement node) {
-    serializeVariables(
-        enclosingBlock, node.variables, false, null, null, false);
+    // TODO(scheglov) Remove when we stop serializing local functions.
   }
 
   /**