categorize behavior/bugs/<issueno>.zig tests

test/behavior/while.zig

@@ -367,3 +367,37 @@ test "while loop with comptime true condition needs no else block to return valu
     };
     try expect(x == 69);
 }
+
+test "int returned from switch in while" {
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+
+    var x: u32 = 3;
+    const val: usize = while (true) switch (x) {
+        1 => break 2,
+        else => x -= 1,
+    };
+    try std.testing.expect(val == 2);
+}
+
+test "breaking from a loop in an if statement" {
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+
+    const S = struct {
+        fn retOpt() ?u32 {
+            return null;
+        }
+    };
+
+    var cond = true;
+    _ = &cond;
+    const opt = while (cond) {
+        if (S.retOpt()) |opt| {
+            break opt;
+        }
+        break 1;
+    } else 2;
+    _ = opt;
+}