Add CHANGES entry and regression test for #676

CHANGES.current

@@ -7,6 +7,10 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.1.0 (in progress)
 ===========================
 
+2022-01-29: dontpanic92
+	    #676 Fix code generated for a C++ class with a non-capitalised
+	    name.
+
 2022-01-26: trex58
 	    #1919 #1921 #1923 Various fixes for AIX portability.
 

Examples/test-suite/class_case.i

@@ -0,0 +1,18 @@
+%module class_case
+
+// Regression test for SWIG/Go bug #676
+
+%inline %{
+
+class ClassA {};
+
+class classB {};
+class classB2 : public classB {};
+
+int Test1(ClassA* a) { return 1; }
+int Test1(int i) { return 0; }
+
+int Test2(classB* a) { return 1; }
+int Test2(int i) { return 0; }
+
+%}

Examples/test-suite/common.mk

@@ -134,6 +134,7 @@ CPP_TEST_CASES += \
 	char_binary \
 	char_strings \
 	chartest \
+	class_case \
 	class_scope_namespace \
 	class_forward \
 	class_ignore \

Examples/test-suite/go/class_case_runme.go

@@ -0,0 +1,12 @@
+package main
+
+import . "swigtests/class_case"
+
+func main() {
+	b2 := NewClassB2()
+	// This used to fail with:
+	// panic: interface conversion: interface {} is class_case.SwigcptrClassB2, not int
+	if Test2(b2) != 1 {
+		panic("Unexpected overload used")
+	}
+}