iOS lock step keyboard + metal

examples/issue-0032.sx

@@ -0,0 +1,17 @@
+// Phase 2 verification: two impls for the same parameterised-protocol
+// (Source, Target) pair declared in the same file MUST produce a clean
+// "duplicate impl" diagnostic at registration time.
+
+#import "modules/std.sx";
+
+MyA :: struct { v: s64 = 0; }
+
+impl Into(MyA) for s64 {
+  convert :: (self: s64) -> MyA { .{ v = self }; }
+}
+
+impl Into(MyA) for s64 {
+  convert :: (self: s64) -> MyA { .{ v = self * 2 }; }
+}
+
+main :: () -> s32 { 0; }