JvmName annotation support, single-file facade case (just rename file facade class)

- initial implementation of JvmFileClassesProvider
- migrate some of PackagePartClassUtil usages to JvmFileClassesProvider (mostly in Codegen)
- placeholder ("no resolve") implementation for migration period and unclear cases
- tests

compiler/testData/codegen/boxWithJava/fileClasses/differentFiles/Baz.java

@@ -0,0 +1,5 @@
+public class Baz {
+    public static String baz() {
+        return Foo.foo() + Bar.bar();
+    }
+}

compiler/testData/codegen/boxWithJava/fileClasses/differentFiles/bar.kt

@@ -0,0 +1,2 @@
+@file:jvmName("Bar")
+public fun bar(): String = "K"

compiler/testData/codegen/boxWithJava/fileClasses/differentFiles/differentFiles.kt

@@ -0,0 +1 @@
+fun box(): String = Baz.baz()

compiler/testData/codegen/boxWithJava/fileClasses/differentFiles/foo.kt

@@ -0,0 +1,2 @@
+@file:jvmName("Foo")
+public fun foo(): String = "O"

compiler/testData/codegen/boxWithJava/fileClasses/simple/Bar.java

@@ -0,0 +1,5 @@
+public class Bar {
+    public static String bar() {
+        return Foo.foo();
+    }
+}

compiler/testData/codegen/boxWithJava/fileClasses/simple/foo.kt

@@ -0,0 +1,2 @@
+@file:jvmName("Foo")
+public fun foo(): String = "OK"

compiler/testData/codegen/boxWithJava/fileClasses/simple/simple.kt

@@ -0,0 +1 @@
+fun box(): String = Bar.bar()