stdlib-js(-v1/-ir): rename source files to avoid duplicates in sources

Prohibit having duplicates in sources jar and rename those source files,
that clash with the same named source files coming from
the common js source root.

Relates to KT-31965

libraries/stdlib/js-ir/build.gradle

@@ -143,10 +143,12 @@ archivesBaseName = 'kotlin-stdlib-js-ir'
 
 jar {
     manifestAttributes(manifest, project, 'Main')
+    duplicatesStrategy = DuplicatesStrategy.FAIL
 }
 
 task sourcesJar(type: Jar, dependsOn: classes) {
     classifier = 'sources'
+    duplicatesStrategy = DuplicatesStrategy.FAIL
     from (sourceSets.main.allSource)
 }
 

libraries/stdlib/js-v1/build.gradle

@@ -308,6 +308,7 @@ task mergedJar(type: Jar, dependsOn: compileJs) {
 task sourcesJar(type: Jar, dependsOn: compileJs) {
     classifier = 'sources'
     includeEmptyDirs false
+    duplicatesStrategy = DuplicatesStrategy.FAIL
     from(sourceSets.builtins.allSource) {
         into 'kotlin'
     }