[build] add checks to ensure that no modules which are part of the IDE plugin do not use experimental stdlib API

to ensure binary compatibility with stdlib inside IntelliJ.

This includes using the latest stable kotlin API version and
forbidding using experimental declarations from stdlib.

^KT-62510

libraries/tools/ide-plugin-dependencies-validator/testData/source/experimentalStdlibApi.kt

@@ -0,0 +1,29 @@
+@OptIn(ExperimentalStdlibApi::class)
+class Usage {
+
+}
+
+@OptIn(ExperimentalStdlibApi::class, OtherOptIn::class)
+class WithOtherArgument {
+
+}
+
+fun x() {
+    @OptIn(ExperimentalStdlibApi::class)
+    call()
+}
+
+@OptIn()
+fun empty() {
+
+}
+
+@ExperimentalStdlibApi
+fun direct() {
+
+}
+
+@kotlin.io.path.ExperimentalPathApi
+fun fqName() {
+
+}

libraries/tools/ide-plugin-dependencies-validator/testData/source/multiple.kt

@@ -0,0 +1,18 @@
+
+@OptIn(ExperimentalPathApi::class, ExperimentalStdlibApi::class)
+class Usage {
+
+}
+
+@ExperimentalPathApi
+@ExperimentalStdlibApi
+fun direct() {
+
+}
+
+
+@kotlin.io.path.ExperimentalPathApi
+@kotlin.io.path.ExperimentalPathApi
+fun fqName() {
+
+}

libraries/tools/ide-plugin-dependencies-validator/testData/source/pckg/experimentalPathApi.kt

@@ -0,0 +1,30 @@
+@OptIn(ExperimentalPathApi::class)
+class Usage {
+
+}
+
+@OptIn(ExperimentalPathApi::class, OtherOptIn::class)
+class WithOtherArgument {
+
+}
+
+fun x() {
+    @OptIn(ExperimentalPathApi::class)
+    call()
+}
+
+@OptIn()
+fun y() {
+
+}
+
+@ExperimentalPathApi
+fun direct() {
+
+}
+
+
+@kotlin.io.path.ExperimentalPathApi
+fun fqName() {
+
+}