internal/cabi: TestBuild TestABI

internal/cabi/_testdata/wrap/basic.c

@@ -0,0 +1,28 @@
+
+char basic_int8(char a) {
+	return a;
+}
+
+short basic_int16(short a) {
+	return a;
+}
+
+int basic_int32(int a) {
+	return a;
+}
+
+long long basic_int64(long long a) {
+	return a;
+}
+
+float basic_float32(float a) {
+	return a;
+}
+
+double basic_float64(double a) {
+	return a;
+}
+
+void* basic_uintptr(void* a) {
+	return a;
+}