Further refinements in variable displaying (Kotlin mode)

- Remove synthetic outer this for lambdas
- Recognize captured this for interface default methods

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/frame/defaultImplsMangling.kt

@@ -0,0 +1,24 @@
+package defaultImplsMangling
+
+interface IFoo {
+    val x: Int
+
+    fun foo() {
+        //Breakpoint!
+        val a = 5
+    }
+}
+
+class Foo : IFoo {
+    override val x: Int = 1
+}
+
+fun main() {
+    Foo().foo()
+}
+
+// SHOW_KOTLIN_VARIABLES
+// PRINT_FRAME
+
+// EXPRESSION: x
+// RESULT: 1: I

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/frame/defaultImplsMangling.out

@@ -0,0 +1,11 @@
+LineBreakpoint created at defaultImplsMangling.kt:8
+Run Java
+Connected to the target VM
+defaultImplsMangling.kt:8
+Compile bytecode for x
+ frame    = foo:8, IFoo$DefaultImpls {defaultImplsMangling}
+   local    = this: defaultImplsMangling.IFoo = {defaultImplsMangling.Foo@uniqueID} (sp = null)
+     field    = x: int = 1 (sp = defaultImplsMangling.kt, 13)
+Disconnected from the target VM
+
+Process finished with exit code 0

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/frame/lambdaThisMangling.kt

@@ -0,0 +1,18 @@
+package lambdaThisMangling
+
+private fun block(block: (String) -> Unit) {
+    block("foo")
+}
+
+fun main() {
+    block { foo ->
+        //Breakpoint!
+        val a = 5
+    }
+}
+
+// SHOW_KOTLIN_VARIABLES
+// PRINT_FRAME
+
+// EXPRESSION: foo
+// RESULT: "foo": Ljava/lang/String;

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/frame/lambdaThisMangling.out

@@ -0,0 +1,15 @@
+LineBreakpoint created at lambdaThisMangling.kt:10
+Run Java
+Connected to the target VM
+lambdaThisMangling.kt:10
+Compile bytecode for foo
+ frame    = invoke:10, LambdaThisManglingKt$main$1 {lambdaThisMangling}
+   local    = foo: java.lang.String = foo (sp = lambdaThisMangling.kt, 8)
+     field    = value: char[] = {char[3]@uniqueID} (sp = String.!EXT!)
+       element  = 0 = 'f' 102
+       element  = 1 = 'o' 111
+       element  = 2 = 'o' 111
+     field    = hash: int = 0 (sp = String.!EXT!)
+Disconnected from the target VM
+
+Process finished with exit code 0