stage2: actually coerce in coerce_result_ptr at comptime

test/behavior/cast.zig

@@ -371,7 +371,9 @@ fn testPeerResolveArrayConstSlice(b: bool) !void {
 }
 
 test "implicitly cast from T to anyerror!?T" {
-    if (builtin.zig_backend != .stage1) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
 
     try castToOptionalTypeError(1);
     comptime try castToOptionalTypeError(1);
@@ -387,7 +389,7 @@ fn castToOptionalTypeError(z: i32) !void {
 
     const f = z;
     const g: anyerror!?i32 = f;
-    _ = g catch {};
+    _ = try g;
 
     const a = A{ .a = z };
     const b: anyerror!?A = a;

test/behavior/error.zig

@@ -294,10 +294,11 @@ fn quux_1() !i32 {
 }
 
 test "error: Zero sized error set returned with value payload crash" {
-    if (builtin.zig_backend != .stage1) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
 
-    _ = foo3(0) catch {};
-    _ = comptime foo3(0) catch {};
+    _ = try foo3(0);
+    _ = comptime try foo3(0);
 }
 
 const Error = error{};

test/behavior/struct.zig

@@ -1237,3 +1237,28 @@ test "anon init through error union" {
     try S.doTheTest();
     comptime try S.doTheTest();
 }
+
+test "typed init through error unions and optionals" {
+    if (builtin.zig_backend == .stage1) return error.SkipZigTest;
+    if (builtin.zig_backend != .stage2_llvm) return error.SkipZigTest; // TODO
+
+    const S = struct {
+        a: u32,
+
+        fn foo() anyerror!?anyerror!@This() {
+            return @This(){ .a = 1 };
+        }
+        fn bar() ?anyerror![2]u8 {
+            return [2]u8{ 1, 2 };
+        }
+
+        fn doTheTest() !void {
+            var a = try (try foo()).?;
+            var b = try bar().?;
+            try expect(a.a + b[1] == 3);
+        }
+    };
+
+    try S.doTheTest();
+    comptime try S.doTheTest();
+}