[JS IR] Build stdlib using compiler from repo

Previously JS IR versions of stdlib and kotlin-test were build
by default using compiler previously built on a buildserver.

It had some issues:
 - This required us to advance bootstrap every time we made any
   incompatible IR changes. This happens often since IR ABI is
   not quite stable yet.

 - We never tested the exact combination of compiler and stdlib we publish

   We tested:
    - new compiler with new stdlib build by new compiler (in box tests)
    - old compiler with new stdlib build by old compiler (in stdlib tests)

   We published:
    - new compiler with new stdlib build by old compiler

After this change JS IR compiler tests, builds and publishes
single configuration:

    new compiler with new stdlib build by new compiler

JS IR stdlib and kotlin-test are now built using JavaExec of CLI instead
of Gradle plugin to avoid troubles of loading a freshly built plugin.

This also allows to have a granular dependencies: we don't rebuild klib
if we changed a lowering in a compiler backend, but we do rebuild it if
we changed IR serialization algorithm.

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/JsScriptEvaluationExtension.kt

@@ -31,7 +31,7 @@ import kotlin.script.experimental.jvm.JsDependency
 fun loadScriptConfiguration(configuration: CompilerConfiguration) {
     val scriptConfiguration = ScriptCompilationConfiguration {
         baseClass("kotlin.Any")
-        dependencies.append(JsDependency("compiler/ir/serialization.js/build/fullRuntime/klib"))
+        dependencies.append(JsDependency("libraries/stdlib/js-ir/build/fullRuntime/klib"))
         platform.put("JS")
     }
     configuration.add(

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/repl/js/JsReplUtils.kt

@@ -147,7 +147,7 @@ fun createCompileResult(lineId: LineId, code: String): ReplCompileResult.Compile
 
 class DependencyLoader {
     // TODO: this should be taken from CompilerConfiguration
-    private val commonPath = "compiler/ir/serialization.js/build/fullRuntime/klib"
+    private val commonPath = "libraries/stdlib/js-ir/build/fullRuntime/klib"
     private val mappedNamesPath = "$commonPath/mappedNames.txt"
     private val scriptDependencyBinaryPath = "$commonPath/scriptDependencyBinary.js"