fix: filter defined and re-defined variables

Author: xepozz

src/main/kotlin/com/github/tempest/framework/php/mixin.kt

@@ -7,5 +7,7 @@ import com.jetbrains.php.lang.psi.elements.Variable
 fun PhpFile.getPhpViewVariables(): Set<Variable> {
     return PsiTreeUtil.findChildrenOfType(this, Variable::class.java)
         .filter { it.useScope == useScope }
+        .filter { !it.isDeclaration }
+        .distinctBy { it.name }
         .toSet()
 }

src/main/resources/META-INF/plugin.xml

@@ -18,6 +18,7 @@
         <xml.tagNameProvider
                 implementation="com.github.tempest.framework.ComponentTagNameProvider"/>
         <psi.referenceContributor
+                order="first"
                 language="HTML"
                 implementation="com.github.tempest.framework.views.references.ComponentReferenceContributor"/>
         <spellchecker.bundledDictionaryProvider