[repo] Migrate Groovy build scripts to use 'kotlinStdlib()' directly from buildSrc

kotlin-native/backend.native/build.gradle

@@ -141,7 +141,7 @@ configurations {
 dependencies {
     kotlin_compiler_jar kotlinCompilerModule
     kotlin_stdlib_jar kotlinStdLibModule
-    use(DependenciesKt) {
+    use(RepoDependencies) {
         trove4j_jar commonDependency("org.jetbrains.intellij.deps:trove4j")
         kotlin_reflect_jar commonDependency("org.jetbrains.kotlin:kotlin-reflect")
         compilerApi(commonDependency("org.jetbrains.intellij.deps.fastutil:intellij-deps-fastutil")) { setTransitive(false) }
@@ -252,4 +252,4 @@ publishing {
 ArtifactsKt.sourcesJar(project) {
     it.from(sourceSets["cli_bc"].allSource)
     it.from(sourceSets["compiler"].allSource)
-}
+}

kotlin-native/backend.native/tests/build.gradle

@@ -36,7 +36,7 @@ configurations {
 
 dependencies {
     // TODO: upgrade coroutines to common version
-    api DependenciesKt.commonDependency(project, "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7")
+    api RepoDependencies.commonDependency(project, "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7")
 }
 ext.testOutputRoot = rootProject.file("test.output").absolutePath
 
@@ -6246,7 +6246,7 @@ dependencies {
 
     implementation kotlinCompilerModule
     api project(path: ':kotlin-native:backend.native', configuration: 'cli_bcApiElements')
-    api DependenciesKt.commonDependency(project, "junit")
+    api RepoDependencies.commonDependency(project, "junit")
 }
 
 // Configure build for iOS device targets.