Fixed find usages for Java's invoke()

idea/idea-analysis/src/org/jetbrains/kotlin/idea/references/referenceUtil.kt

@@ -75,7 +75,7 @@ fun PsiReference.matchesTarget(candidateTarget: PsiElement): Boolean {
     // Optimizations
     when (this) {
         is KtInvokeFunctionReference -> {
-            if (candidateTarget !is KtNamedFunction) return false
+            if (candidateTarget !is KtNamedFunction && candidateTarget !is PsiMethod) return false
         }
         is KtDestructuringDeclarationReference -> {
             if (candidateTarget !is KtNamedFunction && candidateTarget !is KtParameter && candidateTarget !is PsiMethod) return false

idea/testData/findUsages/java/findJavaMethodUsages/javaInvoke.0.java

@@ -0,0 +1,7 @@
+// PSI_ELEMENT: com.intellij.psi.PsiMethod
+// OPTIONS: usages
+
+public class JavaClass {
+    public void <caret>invoke() {
+    }
+}

idea/testData/findUsages/java/findJavaMethodUsages/javaInvoke.0.kt

@@ -0,0 +1,3 @@
+fun f(c: JavaClass) {
+    c()
+}

idea/testData/findUsages/java/findJavaMethodUsages/javaInvoke.log

@@ -0,0 +1,3 @@
+Resolved c()
+Searched references to JavaClass
+Searched references to parameter c of f(c: JavaClass) in Kotlin files

idea/testData/findUsages/java/findJavaMethodUsages/javaInvoke.results.txt

@@ -0,0 +1 @@
+Implicit 'invoke' 2 c()

idea/tests/org/jetbrains/kotlin/findUsages/FindUsagesTestGenerated.java

@@ -1575,6 +1575,12 @@ public class FindUsagesTestGenerated extends AbstractFindUsagesTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("javaInvoke.0.java")
+            public void testJavaInvoke() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/java/findJavaMethodUsages/javaInvoke.0.java");
+                doTest(fileName);
+            }
+
             @TestMetadata("OverriddenMethodSyntheticAccessor.0.java")
             public void testOverriddenMethodSyntheticAccessor() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/java/findJavaMethodUsages/OverriddenMethodSyntheticAccessor.0.java");