Properly calculate maxUsedValue

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/SMAP.kt

@@ -152,7 +152,8 @@ interface SourceMapper {
         }
 
         fun createFromSmap(smap: SMAP): SourceMapper {
-            val sourceMapper = org.jetbrains.kotlin.codegen.inline2.DefaultSourceMapper(smap.sourceInfo)
+            val maxUsedIndex = smap.fileMappings.maxBy { it.lineMappings.maxBy { it.maxDest }!!.maxDest }!!.lineMappings.maxBy { it.maxDest }!!.maxDest
+            val sourceMapper = org.jetbrains.kotlin.codegen.inline2.DefaultSourceMapper(smap.sourceInfo, maxUsedIndex)
             smap.fileMappings.asSequence()
                     //default one mapped through sourceInfo
                     .filterNot { it == smap.default }
@@ -337,6 +338,9 @@ data class RangeMapping(val source: Int, val dest: Int, var range: Int = 1) {
     var parent: FileMapping? = null
     private val skip = source == -1 && dest == -1
 
+    val maxDest: Int
+        get() = dest + range - 1
+
     operator fun contains(destLine: Int): Boolean {
         return if (skip) true else dest <= destLine && destLine < dest + range
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/SMAP2.kt

@@ -81,8 +81,11 @@ open class InlineLambdaSourceMapper(
 }
 
 
-open class DefaultSourceMapper(val sourceInfo: SourceInfo): SourceMapper {
-    protected var maxUsedValue: Int = sourceInfo.linesInFile
+open class DefaultSourceMapper @JvmOverloads constructor(
+        val sourceInfo: SourceInfo,
+        protected var maxUsedValue: Int = sourceInfo.linesInFile
+) : SourceMapper {
+
     var lastVisited: RawFileMapping? = null
     private var lastMappedWithChanges: RawFileMapping? = null
     private var fileMappings: LinkedHashMap<String, RawFileMapping> = linkedMapOf()
@@ -92,7 +95,7 @@ open class DefaultSourceMapper(val sourceInfo: SourceInfo): SourceMapper {
         val name = sourceInfo.source
         val path = sourceInfo.pathOrCleanFQN
         origin = RawFileMapping(name, path)
-        origin.initRange(1, maxUsedValue)
+        origin.initRange(1, sourceInfo.linesInFile)
         fileMappings.put(createKey(name, path), origin)
         lastVisited = origin
     }

compiler/tests-common/org/jetbrains/kotlin/codegen/SMAPTestUtil.kt

@@ -123,4 +123,4 @@ object SMAPTestUtil {
 }
 
 val RangeMapping.toRange: IntRange
-           get() = this.dest..this.dest + this.range - 1
+           get() = this.dest..this.maxDest