Each file is a list of API features, one per line.

go1.txt (and similarly named files) are frozen once a version has been
shipped. Each file adds new lines but does not remove any.

except.txt lists features that may disappear without breaking true
compatibility.

Starting with go1.19.txt, each API feature line must end in "#nnnnn"
giving the GitHub issue number of the proposal issue that accepted

	// Goexit runs the #2 defer. Its panic
	// is caught by the #1 defer.  For Goexit, we explicitly
	// resume execution in the Goexit loop, instead of resuming
	// execution in the caller (which would make the Goexit disappear!)
	defer func() {
		r := recover()
		if r == nil {
			panic("bad recover")
		}
	}()
	defer func() {
		panic("hello")
	}()
	runtime.Goexit()
}

			if IsNotExist(err) {
				// File disappeared between readdir and stat.
				// Treat as if it didn't exist.
				continue
			}
			if err != nil {
				return nil, dirents, nil, err
			}
			dirents = append(dirents, de)
		} else {
			info, err := lstat(f.name + "/" + string(name))
			if IsNotExist(err) {
				// File disappeared between readdir + stat.
				// Treat as if it didn't exist.

     */
    String getName();

    @Override
    ImmutableAttributes getAttributes();

    /**
     * Returns the "sub variants" of this variant.
     *
     * <p>This concept should disappear.</p>
     */
    Set<? extends Subvariant> getVariants();

    List<? extends DependencyMetadata> getDependencies();

    List<? extends ExcludeMetadata> getExcludes();

   * recognize certain cases where distinct {@code Function} instances would in fact behave
   * identically. However, as code migrates to {@code java.util.function}, that behavior will
   * disappear. It is best not to depend on it.
   */
  @Override
  boolean equals(@CheckForNull Object object);

/**
 * Thrown when a daemon disconnects unexpectedly while a client is interacting with it.
 */
public class DaemonDisappearedException extends GradleException {

    public static final String MESSAGE = "Gradle build daemon disappeared unexpectedly (it may have been killed or may have crashed)";

    public DaemonDisappearedException() {
        super(MESSAGE);
    }

			if IsNotExist(err) {
				// File disappeared between readdir and stat.
				// Treat as if it didn't exist.
				continue
			}
			if err != nil {
				return nil, dirents, nil, err
			}
			dirents = append(dirents, de)
		} else {
			info, err := lstat(f.name + "/" + string(name))
			if IsNotExist(err) {
				// File disappeared between readdir + stat.
				// Treat as if it didn't exist.

- [`KT-59872`](https://youtrack.jetbrains.com/issue/KT-59872) K2: Disappeared TYPE_MISMATCH
- [`KT-67192`](https://youtrack.jetbrains.com/issue/KT-67192) K2: Disappeared TYPE_MISMATCH [3]
- [`KT-63319`](https://youtrack.jetbrains.com/issue/KT-63319) K1/K2: inconsistent behavior around NullMarked and type parameter based types
- [`KT-59882`](https://youtrack.jetbrains.com/issue/KT-59882) K2: Disappeared CANNOT_INFER_PARAMETER_TYPE

    raise HTTPException(status_code=204)


@app.get("/http-no-body-statuscode-with-detail-exception")
async def no_body_status_code_with_detail_exception():
    raise HTTPException(status_code=204, detail="I should just disappear!")


@app.get("/starlette-items/{item_id}")
async def read_starlette_item(item_id: str):
    if item_id not in items:
        raise StarletteHTTPException(status_code=404, detail="Item not found")

   * recognize certain cases where distinct {@code Function} instances would in fact behave
   * identically. However, as code migrates to {@code java.util.function}, that behavior will
   * disappear. It is best not to depend on it.
   */
  @Override
  boolean equals(@CheckForNull Object object);