[Analysis API] Add more ContextCollector tests inspired by dependentCopy

As the on-air analysis is obsolete, related tests are going to be
deleted. Here we add cases not yet covered by 'ContextCollector' tests.

analysis/low-level-api-fir/testData/contextCollector/scripts/scriptInsideLastStatement.kts

@@ -0,0 +1,16 @@
+class ScriptClass {
+    val memberProperty = 4
+}
+
+fun scriptFunction() = 42
+fun unusedScriptFunction(p: String) = 22
+
+scriptFunction()
+
+fun foo(i: Int, action: (Int) -> Unit) {
+    action(i)
+}
+
+foo(scriptFunction()) {
+    <expr>scriptFunction()</expr>
+}