LINK: makes macosx based target awared about dsymuil on link stage

- added verbosing symbol information (perhaps it's require special flag).

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt

@@ -55,6 +55,7 @@ internal open class MacOSPlatform(distribution: Distribution)
         properties.propertyList("linkerOptimizationFlags.osx")
     override val linkerKonanFlags = properties.propertyList("linkerKonanFlags.osx")
     override val linker = "${distribution.sysRoot}/usr/bin/ld"
+    private val dsymutil = "${distribution.llvmBin}/llvm-dsymutil"
 
     open val arch = properties.propertyString("arch.osx")!!
     open val osVersionMin = properties.propertyList("osVersionMin.osx")
@@ -75,6 +76,14 @@ internal open class MacOSPlatform(distribution: Distribution)
             linkerKonanFlags +
             listOf("-lSystem")
     }
+
+    open fun dsymutilCommand(executable: ExecutableFile): List<String> {
+        return listOf(dsymutil, executable)
+    }
+
+    open fun dsymutilDryRunVerboseCommand(executable: ExecutableFile): List<String> {
+        return listOf(dsymutil, "-dump-debug-map" ,executable)
+    }
 }
 
 internal class IPhoneOSfromMacOSPlatform(distribution: Distribution)
@@ -259,6 +268,11 @@ internal class LinkStage(val context: Context) {
                 entryPointSelector
 
         runTool(*linkCommand.toTypedArray())
+        if (platform is MacOSPlatform && context.shouldContainDebugInfo()) {
+            if (context.phase?.verbose ?: false)
+                runTool(*platform.dsymutilDryRunVerboseCommand(executable).toTypedArray())
+            runTool(*platform.dsymutilCommand(executable).toTypedArray())
+        }
 
         return executable
     }