DevTools: [JsDocValidator] Fix checking of receivers specified as arguments

Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java

Index: Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java
diff --git a/Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java b/Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java
index c4e9165923d808b47181c067f07b93e78f26f9b1..d955ec984a11d2bb9e42566a55d76f1d4e82ec1e 100644
--- a/Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java
+++ b/Source/devtools/scripts/jsdoc-validator/src/org/chromium/devtools/jsdoc/checks/ContextTrackingChecker.java
@@ -1,9 +1,13 @@
 package org.chromium.devtools.jsdoc.checks;
 
 import com.google.javascript.rhino.head.ast.AstNode;
+import com.google.javascript.rhino.head.ast.Comment;
+import com.google.javascript.rhino.head.ast.FunctionNode;
 
 import org.chromium.devtools.jsdoc.ValidatorContext;
 
+import java.util.regex.Pattern;
+
 abstract class ContextTrackingChecker {
     private ContextTrackingState state;
 
@@ -23,7 +27,13 @@ abstract class ContextTrackingChecker {
         return state.getContext();
     }
 
-    void reportErrorAtNodeStart(AstNode node, String errorText) {
+    protected boolean hasAnnotationTag(FunctionNode node, String tagName) {
+        Comment comment = AstUtil.getJsDocNode(node);
+        return comment != null &&
+                Pattern.matches("(?s).*@" + tagName + "\\b.*", getContext().getNodeText(comment));
+    }
+
+    protected void reportErrorAtNodeStart(AstNode node, String errorText) {
         getContext().reportErrorInNode(node, 0, errorText);
     }
 }