Add tests for merging SAM wrappers and references

compiler/testData/codegen/bytecodeText/sam/samWrapperOfLambda.kt

@@ -0,0 +1,16 @@
+// FILE: JFoo.java
+
+public class JFoo {
+    public static void foo(Runnable f) {
+        f.run();
+    }
+}
+
+// FILE: Test.kt
+fun test() {
+    JFoo.foo({})
+}
+
+// Lambda inlined into run(), no wrapper class generated:
+// 1 NEW
+// 0 INVOKEINTERFACE