Bump LINKER_CACHE_SALT and compiler.BUILT_BY for good measure.

This will trigger recompilation and relinking, which should help prevent
various stale caching issues, e.g. meteor#7977.

tools/isobuild/compiler-plugin.js

@@ -62,7 +62,7 @@ import { isTestFilePath } from './test-files.js';
 // Cache the (slightly post-processed) results of linker.fullLink.
 const CACHE_SIZE = process.env.METEOR_LINKER_CACHE_SIZE || 1024*1024*100;
 const CACHE_DEBUG = !! process.env.METEOR_TEST_PRINT_LINKER_CACHE_DEBUG;
-const LINKER_CACHE_SALT = 11; // Increment this number to force relinking.
+const LINKER_CACHE_SALT = 12; // Increment this number to force relinking.
 const LINKER_CACHE = new LRU({
   max: CACHE_SIZE,
   // Cache is measured in bytes. We don't care about servePath.

tools/isobuild/compiler.js

@@ -34,7 +34,7 @@ var compiler = exports;
 // dependencies. (At least for now, packages only used in target creation (eg
 // minifiers) don't require you to update BUILT_BY, though you will need to quit
 // and rerun "meteor run".)
-compiler.BUILT_BY = 'meteor/24';
+compiler.BUILT_BY = 'meteor/25';
 
 // This is a list of all possible architectures that a build can target. (Client
 // is expanded into 'web.browser' and 'web.cordova')