Update expectations for uninitialized internal function.

test/libsolidity/semanticTests/uninitializedFunctionPointer/uninitialized_internal_storage_function_legacy.sol

@@ -0,0 +1,17 @@
+contract Test {
+	function() internal x;
+	function f() public returns (bool) {
+		function() internal t = x;
+		// The legacy codegen  would use a specific function
+		// entry tag that always panics.
+		// Via Yul, the internal dispatch will panic instead.
+		uint z;
+		assembly { z := t }
+		assert(z != 0);
+		return true;
+	}
+}
+// ====
+// compileViaYul: false
+// ----
+// f() -> true

test/libsolidity/semanticTests/uninitializedFunctionPointer/uninitialized_internal_storage_function_via_yul.sol

@@ -0,0 +1,17 @@
+contract Test {
+	function() internal x;
+	function f() public returns (bool) {
+		function() internal t = x;
+		// The legacy codegen  would use a specific function
+		// entry tag that always panics.
+		// Via Yul, the internal dispatch will panic instead.
+		uint z;
+		assembly { z := t }
+		assert(z == 0);
+		return true;
+	}
+}
+// ====
+// compileViaYul: true
+// ----
+// f() -> true