Debugger: location.sourceName could throw InternalError if codeIndex isn't valid

idea/src/org/jetbrains/kotlin/idea/debugger/JetPositionManager.kt

@@ -156,6 +156,9 @@ public class JetPositionManager(private val myDebugProcess: DebugProcess) : Mult
         catch (e: AbsentInformationException) {
             return null
         }
+        catch (e: InternalError) {
+            return null
+        }
 
 
         val referenceInternalName: String

idea/src/org/jetbrains/kotlin/idea/debugger/breakpoints/KotlinFieldBreakpoint.kt

@@ -265,7 +265,10 @@ class KotlinFieldBreakpoint(
             location.sourceName()
         }
         catch (e: AbsentInformationException) {
-            getFileName()
+            fileName
+        }
+        catch (e: InternalError) {
+            fileName
         }
 
         val locationLine = location.lineNumber()