[compiler] Add snap subcommand to minimize a test input (facebook#35663)

Snap now supports subcommands 'test' (default) and 'minimize`. The
minimize subcommand attempts to minimize a single failing input fixture
by incrementally simplifying the ast so long as the same error occurs. I
spot-checked it and it seemed to work pretty well. This is intended for
use in a new subagent designed for investigating bugs — fixture
simplification is an important part of the process and we can automate
this rather than light tokens on fire.

Example Input:

```js
function Component(props) {
  const x = [];
  let result;
  for (let i = 0; i < 10; i++) {
    if (cond) {
      try {
        result = {key: bar([props.cond && props.foo])};
      } catch (e) {
        console.log(e);
      }
    }
  }
  x.push(result);
  return <Stringify x={x} />;
}
```

Command output:

```
$ yarn snap minimize --path .../input.js
Minimizing: .../input.js

Minimizing................

--- Minimized Code ---
function Component(props) {
  try {
    props && props;
  } catch (e) {}
}

Reduced from 16 lines to 5 lines
```

This demonstrates things like:
* Removing one statement at at time
* Replacing if/else with the test, consequent, or alternate. Similar for
other control-flow statements including try/catch
* Removing individual array/object expression properties
* Replacing single-value array/object with the value
* Replacing control-flow expression (logical, consequent) w the test or
left/right values
* Removing call arguments
* Replacing calls with a single argument with the argument
* Replacing calls with multiple arguments with an array of the arguments
* Replacing optional member/call with non-optional versions
* Replacing member expression with the object. If computed, also try
replacing w the key
* And a bunch more strategies, see the code

Author: josephsavona

compiler/packages/snap/package.json

@@ -22,6 +22,7 @@
   },
   "dependencies": {
     "@babel/code-frame": "^7.22.5",
+    "@babel/generator": "^7.19.1",
     "@babel/plugin-syntax-jsx": "^7.18.6",
     "@babel/preset-flow": "^7.7.4",
     "@babel/preset-typescript": "^7.26.0",
@@ -58,6 +59,7 @@
   "resolutions": {
     "./**/@babel/parser": "7.7.4",
     "./**/@babel/types": "7.7.4",
+    "@babel/generator": "7.2.0",
     "@babel/preset-flow": "7.22.5"
   }
 }