feat: add new inheritance test cases for error handling and method overriding scenarios

Author: ryan-gang

internal/tester_definition.go

@@ -338,8 +338,12 @@ var testerDefinition = tester_definition.TesterDefinition{
 			TestFunc: createTestForRunCommandStage("i4"),
 		},
 		{
-			Slug:     "i5",
-			TestFunc: createTestForRunCommandStage("i5"),
+			Slug:     "i6",
+			TestFunc: createTestForRunCommandStage("ioverriding"),
+		},
+		{
+			Slug:     "i7",
+			TestFunc: createTestForRunCommandStage("ierrors"),
 		},
 	},
 }

test_programs/ierrors/4.lox

@@ -0,0 +1,5 @@
+---
+expected_error_type: compile
+---
+// A class can't inherit from itself.
+class Foo < Foo {} // expect compile error

test_programs/ierrors/5.lox

@@ -0,0 +1,10 @@
+---
+expected_error_type: runtime
+---
+fun A() {}
+
+// A class can only inherit from a class.
+class B < A {} // expect runtime error
+
+print A();
+print B();

test_programs/ierrors/6.lox

@@ -0,0 +1,8 @@
+---
+expected_error_type: runtime
+---
+var A = "class";
+
+class B < A {}
+
+print B();