K2JS: introduce "no-stdlb" parameter and use stdlib from compiler by default.

compiler/testData/cli/js/jsHelp.out

@@ -1,6 +1,7 @@
 Usage: kotlinc-js <options> <source files>
 where possible options include:
   -output <path>             Output file path
+  -no-stdlib                 Don't use bundled Kotlin stdlib
   -library-files <path[,]>   Path to zipped library sources or kotlin files separated by commas
   -source-map                Generate source map
   -target <version>          Generate JS files for specific ECMA version (only ECMA 5 is supported)

compiler/testData/cli/js/outputPostfixFileNotFound.args

@@ -1,4 +1,5 @@
 $TESTDATA_DIR$/simple2js.kt
+-no-stdlib
 -output
 $TEMP_DIR$/out.js
 -output-postfix

compiler/testData/cli/js/outputPrefixFileNotFound.args

@@ -1,4 +1,5 @@
 $TESTDATA_DIR$/simple2js.kt
+-no-stdlib
 -output
 $TEMP_DIR$/out.js
 -output-prefix

compiler/testData/cli/js/simple2js.args

@@ -1,3 +1,4 @@
 $TESTDATA_DIR$/simple2js.kt
+-no-stdlib
 -output
 $TEMP_DIR$/out.js

compiler/testData/cli/js/suppressAllWarningsJS.args

@@ -1,4 +1,5 @@
 $TESTDATA_DIR$/../warnings.kt
+-no-stdlib
 -nowarn
 -output
 $TEMP_DIR$/out.js