Fix prerelease checks in .availableHelper and transform-runtime defin…

…itions. (#8659)

packages/babel-core/src/transformation/file/file.js

@@ -166,6 +166,25 @@ export default class File {
       return false;
     }
 
+    // semver.intersects() has some surprising behavior with comparing ranges
+    // with preprelease versions. We add '^' to ensure that we are always
+    // comparing ranges with ranges, which sidesteps this logic.
+    // For example:
+    //
+    //   semver.intersects(`<7.0.1`, "7.0.0-beta.0") // false - surprising
+    //   semver.intersects(`<7.0.1`, "^7.0.0-beta.0") // true - expected
+    //
+    // This is because the first falls back to
+    //
+    //   semver.satisfies("7.0.0-beta.0", `<7.0.1`) // false - surprising
+    //
+    // and this fails because a prerelease version can only satisfy a range
+    // if it is a prerelease within the same major/minor/patch range.
+    //
+    // Note: If this is found to have issues, please also revist the logic in
+    // transform-runtime's definitions.js file.
+    if (semver.valid(versionRange)) versionRange = `^${versionRange}`;
+
     return (
       typeof versionRange !== "string" ||
       (!semver.intersects(`<${minVersion}`, versionRange) &&