IDEA-67497 XSLT: "Unused XML schema declaration" inspection: false positive for namespace declaration used in stylesheet object qualified name

plugins/xpath/xpath-lang/test/org/intellij/lang/xpath/xslt/XsltHighlightingTest.java

@@ -15,6 +15,8 @@
  */
 package org.intellij.lang.xpath.xslt;
 
+import com.intellij.codeInsight.daemon.impl.analysis.XmlUnusedNamespaceInspection;
+import com.intellij.javaee.ExternalResourceManagerEx;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Computable;
@@ -34,6 +36,7 @@ public class XsltHighlightingTest extends TestBase {
     protected void setUp() throws Exception {
         super.setUp();
         myFixture.enableInspections(XsltStuffProvider.INSPECTION_CLASSES);
+        ExternalResourceManagerEx.getInstanceEx().addIgnoredResource("urn:my");
     }
 
     public void xtestBackwardIncludedVariable() throws Throwable {
@@ -112,6 +115,11 @@ public class XsltHighlightingTest extends TestBase {
         doXsltHighlighting();
     }
 
+    public void testTemplateWithPrefix() throws Throwable {
+        myFixture.enableInspections(XmlUnusedNamespaceInspection.class);
+        doXsltHighlighting();
+    }
+
     public void xtestPerformance() throws Throwable {
         myFixture.configureByFile(getTestFileName() + ".xsl");
         final long l = runHighlighting();

plugins/xpath/xpath-lang/testData/xslt/highlighting/templateWithPrefix.xsl

@@ -0,0 +1,7 @@
+<xsl:transform version="1.0"
+               xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+               xmlns:pf1="urn:my">
+  <xsl:template name="pf1:name1">
+    <xsl:call-template name="pf1:name1" />
+  </xsl:template>
+</xsl:transform>