FIR IDE: move low level api testdata sources to the analysis directory

analysis/low-level-api-fir/testdata/libraryModuleResolve/_library/kotlinLibraryFile.kt

@@ -0,0 +1,18 @@
+package library
+
+fun topLevelFunction() {}
+
+fun topLevelFunction(s: String) {}
+
+val topLevelProperty: Int = 0
+
+class TopLevelClass() {
+
+    constructor(s: String) : this() {}
+
+    fun memberFunction() {}
+
+    fun memberFunction(s: String) {}
+
+    val memberProperty: Int = 0
+}