Introduced -nomain flag to disable generation of main(),

in assumption that it is provided by one of the libraries.

backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -72,6 +72,7 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                 put(NOSTDLIB, arguments.nostdlib)
                 put(COMPILE_AS_STDLIB, arguments.compileAsStdlib)
                 put(NOLINK, arguments.nolink)
+                put(NOMAIN, arguments.nomain)
                 put(LIBRARY_FILES,
                         arguments.libraries.toNonNullList())
 

backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.java

@@ -28,6 +28,9 @@ public class K2NativeCompilerArguments extends CommonCompilerArguments {
     @Argument(value = "nolink", description = "Don't link, just produce a bitcode file")
     public boolean nolink;
 
+    @Argument(value = "nomain", description = "Assume 'main' entry point to be provided by external libraries")
+    public boolean nomain;
+
     @Argument(value = "linkerArgs", description = "Pass arguments to linker", delimiter = " ")
     @ValueDescription("<arg>")
     public String[] linkerArguments;