Fix debugger test on Java7

idea/testData/debugger/tinyApp/outs/frameSimple.out

@@ -12,18 +12,20 @@ val topVal1 = 1
 
 fun main(args: Array<String>) {
     val val1 = 1
-    val val2 = "str"
+    val val2 = MyClass()
     //Breakpoint!
     val1 + topVal1
 }
 
+class MyClass
+
 // PRINT_FRAME
 
 // EXPRESSION: val1
 // RESULT: 1: I
 
 // EXPRESSION: val2
-// RESULT: "str": Ljava/lang/String;
+// RESULT: instance of frameSimple.MyClass(id=ID): LframeSimple/MyClass;
 
 // EXPRESSION: topVal1
 // RESULT: 1: I
@@ -35,14 +37,7 @@ fun main(args: Array<String>) {
      field    = topVal1: int = 1 (sp = null)
    local    = args: java.lang.String[] = {java.lang.String[0]@uniqueID} (sp = frameSimple.kt, 5)
    local    = val1: int = 1 (sp = frameSimple.kt, 6)
-   local    = val2: java.lang.String = str (sp = frameSimple.kt, 7)
-     field    = value: char[] = {char[3]@uniqueID} (sp = String.!EXT!)
-       unknown  = [0] = 's' 115
-       unknown  = [1] = 't' 116
-       unknown  = [2] = 'r' 114
-     field    = offset: int = 0 (sp = String.!EXT!)
-     field    = count: int = 3 (sp = String.!EXT!)
-     field    = hash: int = 0 (sp = String.!EXT!)
+   local    = val2: frameSimple.MyClass = {frameSimple.MyClass@uniqueID} (sp = frameSimple.kt, 7)
 Disconnected from the target VM, address: '!HOST_NAME!:PORT_NAME!', transport: 'socket'
 
 Process finished with exit code 0

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

@@ -4,18 +4,20 @@ val topVal1 = 1
 
 fun main(args: Array<String>) {
     val val1 = 1
-    val val2 = "str"
+    val val2 = MyClass()
     //Breakpoint!
     val1 + topVal1
 }
 
+class MyClass
+
 // PRINT_FRAME
 
 // EXPRESSION: val1
 // RESULT: 1: I
 
 // EXPRESSION: val2
-// RESULT: "str": Ljava/lang/String;
+// RESULT: instance of frameSimple.MyClass(id=ID): LframeSimple/MyClass;
 
 // EXPRESSION: topVal1
 // RESULT: 1: I