K2: Add new tests for PCLA implementation

Many of them have been found & minimized at FP tests/user projects

^KT-59791 Fixed

compiler/testData/diagnostics/tests/inference/builderInference/callableReferenceInsideInvokeCall.kt

@@ -0,0 +1,15 @@
+// FIR_IDENTICAL
+fun <X> mySuspendable(block: (MyContinuation<X>) -> Unit): X = TODO()
+
+interface MyContinuation<in Y> {
+    fun cancel(): Unit
+}
+
+fun <Z> MyContinuation<Z>.resume(value: Z) {}
+
+fun cancelOrProceed(handler: (cancel: () -> Unit, proceed: () -> Unit) -> Unit) {
+    mySuspendable { x ->
+        // Was exception: Expected expression 'FirCallableReferenceAccessImpl' to be resolved
+        handler(x::cancel) { x.resume("") }
+    }.length
+}