[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/inference/extensionCallableReferences.kt

@@ -0,0 +1,16 @@
+class A
+
+class B {
+    val memberVal: A = A()
+    fun memberFun(): A = A()
+}
+
+val B.extensionVal: A
+    get() = A()
+
+fun B.extensionFun(): A = A()
+
+fun test_1() {
+    val extensionValRef = B::extensionVal
+    val extensionFunRef = B::extensionFun
+}