Refactoring: extract KotlinStepOverInlineFilter class

(cherry picked from commit 27b0e7d)

idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinStepOverInlineFilter.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.idea.debugger.stepping
+
+import com.intellij.debugger.engine.DebugProcessImpl
+import com.intellij.debugger.engine.SuspendContextImpl
+import com.intellij.util.Range
+import com.sun.jdi.LocalVariable
+import com.sun.jdi.Location
+
+class KotlinStepOverInlineFilter(val stepOverLines: Set<Int>, val fromLine: Int,
+                                 val inlineFunRangeVariables: List<LocalVariable>) : KotlinMethodFilter {
+    override fun locationMatches(context: SuspendContextImpl, location: Location): Boolean {
+        val frameProxy = context.frameProxy
+        if (frameProxy == null) return true
+
+        val currentLine = location.lineNumber()
+
+        if (!(stepOverLines.contains(location.lineNumber()))) {
+            return currentLine != fromLine
+        }
+
+        val visibleInlineVariables = getInlineRangeLocalVariables(frameProxy)
+
+        // Our ranges check missed exit from inline function. This is when breakpoint was in last statement of inline functions.
+        // This can be observed by inline local range-variables. Absence of any means step out was done.
+        return inlineFunRangeVariables.any { !visibleInlineVariables.contains(it) }
+    }
+
+    override fun locationMatches(process: DebugProcessImpl, location: Location): Boolean {
+        throw IllegalStateException() // Should not be called from Kotlin hint
+    }
+
+    override fun getCallingExpressionLines(): Range<Int>? {
+        throw IllegalStateException() // Should not be called from Kotlin hint
+    }
+}

idea/src/org/jetbrains/kotlin/idea/debugger/stepping/KotlinSteppingCommandProvider.kt

@@ -296,34 +296,6 @@ interface KotlinMethodFilter: MethodFilter {
     fun locationMatches(context: SuspendContextImpl, location: Location): Boolean
 }
 
-class KotlinStepOverInlineFilter(val stepOverLines: Set<Int>, val fromLine: Int,
-                                 val inlineFunRangeVariables: List<LocalVariable>) : KotlinMethodFilter {
-    override fun locationMatches(context: SuspendContextImpl, location: Location): Boolean {
-        val frameProxy = context.frameProxy
-        if (frameProxy == null) return true
-
-        val currentLine = location.lineNumber()
-
-        if (!(stepOverLines.contains(location.lineNumber()))) {
-            return currentLine != fromLine
-        }
-
-        val visibleInlineVariables = getInlineRangeLocalVariables(frameProxy)
-
-        // Our ranges check missed exit from inline function. This is when breakpoint was in last statement of inline functions.
-        // This can be observed by inline local range-variables. Absence of any means step out was done.
-        return inlineFunRangeVariables.any { !visibleInlineVariables.contains(it) }
-    }
-
-    override fun locationMatches(process: DebugProcessImpl, location: Location): Boolean {
-        throw IllegalStateException() // Should not be called from Kotlin hint
-    }
-
-    override fun getCallingExpressionLines(): Range<Int>? {
-        throw IllegalStateException() // Should not be called from Kotlin hint
-    }
-}
-
 fun getStepOverAction(
         location: Location,
         kotlinSourcePosition: KotlinSteppingCommandProvider.KotlinSourcePosition,
@@ -496,7 +468,7 @@ private fun SuspendContextImpl.getNextPositionWithFilter(
     return null
 }
 
-private fun getInlineRangeLocalVariables(stackFrame: StackFrameProxyImpl): List<LocalVariable> {
+fun getInlineRangeLocalVariables(stackFrame: StackFrameProxyImpl): List<LocalVariable> {
     return stackFrame.visibleVariables()
             .filter {
                 val name = it.name()