allow returning multiple PsiMethod wrappers for a JetFunction or JetPropertyAccessor; use that for handling Java usages through old-style and new-style facades

#KT-9102 Fixed

idea/testData/findUsages/kotlin/findFunctionUsages/kotlinTopLevelMethodUsages.3.java

@@ -0,0 +1,11 @@
+package client;
+
+import server.KotlinTopLevelMethodUsages_0Kt;
+
+class JClient {
+    String s = KotlinTopLevelMethodUsages_0Kt.processRequest();
+
+    String sendRequest() {
+        return KotlinTopLevelMethodUsages_0Kt.processRequest();
+    }
+}

idea/testData/findUsages/kotlin/findFunctionUsages/kotlinTopLevelMethodUsages.results.txt

@@ -2,4 +2,6 @@
 [kotlinTopLevelMethodUsages.1.kt] Function call (10: 9) processRequest()
 [kotlinTopLevelMethodUsages.1.kt] Usage in import (3: 15) import server.processRequest
 [kotlinTopLevelMethodUsages.2.java] Unclassified usage (6: 30) String s = ServerPackage.processRequest();
-[kotlinTopLevelMethodUsages.2.java] Unclassified usage (9: 30) return ServerPackage.processRequest();
+[kotlinTopLevelMethodUsages.2.java] Unclassified usage (9: 30) return ServerPackage.processRequest();
+[kotlinTopLevelMethodUsages.3.java] Unclassified usage (6: 47) String s = KotlinTopLevelMethodUsages_0Kt.processRequest();
+[kotlinTopLevelMethodUsages.3.java] Unclassified usage (9: 47) return KotlinTopLevelMethodUsages_0Kt.processRequest();

idea/testData/findUsages/kotlin/findFunctionUsages/kotlinTopLevelMethodUsagesWithRenamedFile.0.kt

@@ -0,0 +1,7 @@
+// PSI_ELEMENT: org.jetbrains.kotlin.psi.JetNamedFunction
+// OPTIONS: usages
+@file:JvmName("RequestProcessor")
+package server
+
+fun <caret>processRequest() = "foo"
+

idea/testData/findUsages/kotlin/findFunctionUsages/kotlinTopLevelMethodUsagesWithRenamedFile.1.java

@@ -0,0 +1,11 @@
+package client;
+
+import server.RequestProcessor;
+
+class JClient {
+    String s = RequestProcessor.processRequest();
+
+    String sendRequest() {
+        return RequestProcessor.processRequest();
+    }
+}

idea/testData/findUsages/kotlin/findFunctionUsages/kotlinTopLevelMethodUsagesWithRenamedFile.results.txt

@@ -0,0 +1,2 @@
+Unclassified usage (6: 33) String s = RequestProcessor.processRequest();
+Unclassified usage (9: 33) return RequestProcessor.processRequest();

idea/testData/findUsages/kotlin/findPropertyUsages/kotlinTopLevelPropertyUsages.3.java

@@ -0,0 +1,11 @@
+package client;
+
+import server.KotlinTopLevelPropertyUsages_0Kt;
+
+class JClient {
+    void fooBar() {
+        System.out.println("foo = " + KotlinTopLevelPropertyUsages_0Kt.getFoo());
+        System.out.println("length: " + KotlinTopLevelPropertyUsages_0Kt.getFoo().length());
+        KotlinTopLevelPropertyUsages_0Kt.setFoo("");
+    }
+}

idea/testData/findUsages/kotlin/findPropertyUsages/kotlinTopLevelPropertyUsages.results.txt

@@ -3,4 +3,7 @@
 [kotlinTopLevelPropertyUsages.1.kt] Value read (7: 33) println("foo = ${server.foo}")
 [kotlinTopLevelPropertyUsages.2.java] Unclassified usage (7: 53) System.out.println("foo = " + ServerPackage.getFoo());
 [kotlinTopLevelPropertyUsages.2.java] Unclassified usage (8: 55) System.out.println("length: " + ServerPackage.getFoo().length());
-[kotlinTopLevelPropertyUsages.2.java] Unclassified usage (9: 23) ServerPackage.setFoo("");
+[kotlinTopLevelPropertyUsages.2.java] Unclassified usage (9: 23) ServerPackage.setFoo("");
+[kotlinTopLevelPropertyUsages.3.java] Unclassified usage (7: 72) System.out.println("foo = " + KotlinTopLevelPropertyUsages_0Kt.getFoo());
+[kotlinTopLevelPropertyUsages.3.java] Unclassified usage (8: 74) System.out.println("length: " + KotlinTopLevelPropertyUsages_0Kt.getFoo().length());
+[kotlinTopLevelPropertyUsages.3.java] Unclassified usage (9: 42) KotlinTopLevelPropertyUsages_0Kt.setFoo("");

idea/testData/refactoring/rename/renameKotlinPackageFunctionFromJavaNewFacade/after/RenameKotlinPackageFunctionFromJava.kt

@@ -0,0 +1,11 @@
+@file:JvmName("Bartender")
+
+package testing.rename
+
+public fun bar() = 1
+
+fun usage() {
+    bar()
+}
+
+val some = bar()

idea/testData/refactoring/rename/renameKotlinPackageFunctionFromJavaNewFacade/after/testing/JavaClient.java

@@ -0,0 +1,9 @@
+package testing;
+
+import testing.rename.Bartender;
+
+class JavaClient {
+    public void testing() {
+        Bartender.bar();
+    }
+}

idea/testData/refactoring/rename/renameKotlinPackageFunctionFromJavaNewFacade/before/RenameKotlinPackageFunctionFromJava.kt

@@ -0,0 +1,11 @@
+@file:JvmName("Bartender")
+
+package testing.rename
+
+public fun foo() = 1
+
+fun usage() {
+    foo()
+}
+
+val some = foo()

idea/testData/refactoring/rename/renameKotlinPackageFunctionFromJavaNewFacade/before/testing/JavaClient.java

@@ -0,0 +1,9 @@
+package testing;
+
+import testing.rename.Bartender;
+
+class JavaClient {
+    public void testing() {
+        Bartender.foo();
+    }
+}

idea/testData/refactoring/rename/renameKotlinPackageFunctionFromJavaNewFacade/renameKotlinPackageFunctionFromJava.test

@@ -0,0 +1,6 @@
+{
+  "type": "JAVA_METHOD",
+  "classId": "testing/rename/Bartender",
+  "methodSignature": "int foo()",
+  "newName": "bar"
+}

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/after/RenameTopLevelVarProperty.kt

@@ -0,0 +1,3 @@
+package testing.rename
+
+var /*rename*/bar: String = "xyzzy"

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/after/testing/JavaClientNewFacade.java

@@ -0,0 +1,10 @@
+package testing;
+
+import testing.rename.RenameTopLevelVarPropertyKt;
+
+class JavaClientNewFacade {
+    public void foo() {
+        String old = RenameTopLevelVarPropertyKt.getBar();
+        RenameTopLevelVarPropertyKt.setBar(old + "new");
+    }
+}

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/after/testing/JavaClientOldFacade.java

@@ -0,0 +1,10 @@
+package testing;
+
+import testing.rename.RenamePackage;
+
+class JavaClientOldFacade {
+    public void foo() {
+        String old = RenamePackage.getBar();
+        RenamePackage.setBar(old + "new");
+    }
+}

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/before/RenameTopLevelVarProperty.kt

@@ -0,0 +1,3 @@
+package testing.rename
+
+var /*rename*/foo: String = "xyzzy"

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/before/testing/JavaClientNewFacade.java

@@ -0,0 +1,10 @@
+package testing;
+
+import testing.rename.RenameTopLevelVarPropertyKt;
+
+class JavaClientNewFacade {
+    public void foo() {
+        String old = RenameTopLevelVarPropertyKt.getFoo();
+        RenameTopLevelVarPropertyKt.setFoo(old + "new");
+    }
+}

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/before/testing/JavaClientOldFacade.java

@@ -0,0 +1,10 @@
+package testing;
+
+import testing.rename.RenamePackage;
+
+class JavaClientOldFacade {
+    public void foo() {
+        String old = RenamePackage.getFoo();
+        RenamePackage.setFoo(old + "new");
+    }
+}

idea/testData/refactoring/rename/renameKotlinTopLevelVarProperty/renameTopLevelVarProperty.test

@@ -0,0 +1,5 @@
+{
+  "type": "MARKED_ELEMENT",
+  "mainFile": "RenameTopLevelVarProperty.kt",
+  "newName": "bar"
+}