Generate line numbers for closing '}' in 'init {}' blocks (KT-12787)

idea/testData/debugger/tinyApp/src/stepping/custom/initBlocks.kt

@@ -0,0 +1,18 @@
+package initBlocks
+
+class Foo {
+    init {
+        //Breakpoint!
+        val a = 5
+    }
+
+    init {
+        val b = 7
+    }
+}
+
+fun main() {
+    Foo()
+}
+
+// STEP_OVER: 5

idea/testData/debugger/tinyApp/src/stepping/custom/initBlocks.out

@@ -0,0 +1,12 @@
+LineBreakpoint created at initBlocks.kt:6
+Run Java
+Connected to the target VM
+initBlocks.kt:6
+initBlocks.kt:7
+initBlocks.kt:10
+initBlocks.kt:11
+initBlocks.kt:15
+initBlocks.kt:16
+Disconnected from the target VM
+
+Process finished with exit code 0

idea/testData/debugger/tinyApp/src/stepping/filters/doNotSkipConstructors.out

@@ -4,7 +4,7 @@ Connected to the target VM
 doNotSkipConstructors.kt:5
 doNotSkipConstructors.kt:9
 doNotSkipConstructors.kt:11
-doNotSkipConstructors.kt:5
+doNotSkipConstructors.kt:12
 Disconnected from the target VM
 
 Process finished with exit code 0